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824 lines
22 KiB
824 lines
22 KiB
// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 |
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/******************************************************************************* |
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* |
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* Module Name: rscalc - Calculate stream and list lengths |
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* |
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******************************************************************************/ |
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|
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#include <acpi/acpi.h> |
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#include "accommon.h" |
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#include "acresrc.h" |
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#include "acnamesp.h" |
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|
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#define _COMPONENT ACPI_RESOURCES |
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ACPI_MODULE_NAME("rscalc") |
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|
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/* Local prototypes */ |
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static u8 acpi_rs_count_set_bits(u16 bit_field); |
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|
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static acpi_rs_length |
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acpi_rs_struct_option_length(struct acpi_resource_source *resource_source); |
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static u32 |
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acpi_rs_stream_option_length(u32 resource_length, u32 minimum_total_length); |
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|
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/******************************************************************************* |
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* |
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* FUNCTION: acpi_rs_count_set_bits |
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* |
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* PARAMETERS: bit_field - Field in which to count bits |
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* |
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* RETURN: Number of bits set within the field |
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* |
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* DESCRIPTION: Count the number of bits set in a resource field. Used for |
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* (Short descriptor) interrupt and DMA lists. |
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* |
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******************************************************************************/ |
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|
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static u8 acpi_rs_count_set_bits(u16 bit_field) |
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{ |
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u8 bits_set; |
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ACPI_FUNCTION_ENTRY(); |
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|
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for (bits_set = 0; bit_field; bits_set++) { |
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|
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/* Zero the least significant bit that is set */ |
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bit_field &= (u16) (bit_field - 1); |
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} |
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return (bits_set); |
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} |
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|
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/******************************************************************************* |
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* |
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* FUNCTION: acpi_rs_struct_option_length |
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* |
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* PARAMETERS: resource_source - Pointer to optional descriptor field |
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* |
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* RETURN: Status |
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* |
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* DESCRIPTION: Common code to handle optional resource_source_index and |
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* resource_source fields in some Large descriptors. Used during |
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* list-to-stream conversion |
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* |
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******************************************************************************/ |
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|
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static acpi_rs_length |
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acpi_rs_struct_option_length(struct acpi_resource_source *resource_source) |
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{ |
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ACPI_FUNCTION_ENTRY(); |
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|
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/* |
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* If the resource_source string is valid, return the size of the string |
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* (string_length includes the NULL terminator) plus the size of the |
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* resource_source_index (1). |
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*/ |
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if (resource_source->string_ptr) { |
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return ((acpi_rs_length)(resource_source->string_length + 1)); |
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} |
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return (0); |
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} |
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|
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/******************************************************************************* |
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* |
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* FUNCTION: acpi_rs_stream_option_length |
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* |
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* PARAMETERS: resource_length - Length from the resource header |
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* minimum_total_length - Minimum length of this resource, before |
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* any optional fields. Includes header size |
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* |
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* RETURN: Length of optional string (0 if no string present) |
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* |
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* DESCRIPTION: Common code to handle optional resource_source_index and |
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* resource_source fields in some Large descriptors. Used during |
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* stream-to-list conversion |
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* |
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******************************************************************************/ |
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|
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static u32 |
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acpi_rs_stream_option_length(u32 resource_length, |
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u32 minimum_aml_resource_length) |
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{ |
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u32 string_length = 0; |
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ACPI_FUNCTION_ENTRY(); |
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|
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/* |
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* The resource_source_index and resource_source are optional elements of |
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* some Large-type resource descriptors. |
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*/ |
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|
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/* |
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* If the length of the actual resource descriptor is greater than the |
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* ACPI spec-defined minimum length, it means that a resource_source_index |
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* exists and is followed by a (required) null terminated string. The |
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* string length (including the null terminator) is the resource length |
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* minus the minimum length, minus one byte for the resource_source_index |
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* itself. |
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*/ |
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if (resource_length > minimum_aml_resource_length) { |
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/* Compute the length of the optional string */ |
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string_length = |
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resource_length - minimum_aml_resource_length - 1; |
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} |
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|
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/* |
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* Round the length up to a multiple of the native word in order to |
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* guarantee that the entire resource descriptor is native word aligned |
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*/ |
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return ((u32) ACPI_ROUND_UP_TO_NATIVE_WORD(string_length)); |
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} |
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|
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/******************************************************************************* |
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* |
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* FUNCTION: acpi_rs_get_aml_length |
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* |
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* PARAMETERS: resource - Pointer to the resource linked list |
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* resource_list_size - Size of the resource linked list |
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* size_needed - Where the required size is returned |
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* |
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* RETURN: Status |
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* |
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* DESCRIPTION: Takes a linked list of internal resource descriptors and |
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* calculates the size buffer needed to hold the corresponding |
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* external resource byte stream. |
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* |
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******************************************************************************/ |
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acpi_status |
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acpi_rs_get_aml_length(struct acpi_resource *resource, |
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acpi_size resource_list_size, acpi_size *size_needed) |
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{ |
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acpi_size aml_size_needed = 0; |
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struct acpi_resource *resource_end; |
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acpi_rs_length total_size; |
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ACPI_FUNCTION_TRACE(rs_get_aml_length); |
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/* Traverse entire list of internal resource descriptors */ |
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resource_end = |
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ACPI_ADD_PTR(struct acpi_resource, resource, resource_list_size); |
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while (resource < resource_end) { |
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|
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/* Validate the descriptor type */ |
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if (resource->type > ACPI_RESOURCE_TYPE_MAX) { |
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return_ACPI_STATUS(AE_AML_INVALID_RESOURCE_TYPE); |
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} |
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/* Sanity check the length. It must not be zero, or we loop forever */ |
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if (!resource->length) { |
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return_ACPI_STATUS(AE_AML_BAD_RESOURCE_LENGTH); |
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} |
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/* Get the base size of the (external stream) resource descriptor */ |
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total_size = acpi_gbl_aml_resource_sizes[resource->type]; |
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/* |
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* Augment the base size for descriptors with optional and/or |
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* variable-length fields |
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*/ |
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switch (resource->type) { |
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case ACPI_RESOURCE_TYPE_IRQ: |
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|
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/* Length can be 3 or 2 */ |
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|
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if (resource->data.irq.descriptor_length == 2) { |
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total_size--; |
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} |
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break; |
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|
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case ACPI_RESOURCE_TYPE_START_DEPENDENT: |
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|
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/* Length can be 1 or 0 */ |
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if (resource->data.irq.descriptor_length == 0) { |
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total_size--; |
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} |
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break; |
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case ACPI_RESOURCE_TYPE_VENDOR: |
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/* |
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* Vendor Defined Resource: |
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* For a Vendor Specific resource, if the Length is between 1 and 7 |
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* it will be created as a Small Resource data type, otherwise it |
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* is a Large Resource data type. |
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*/ |
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if (resource->data.vendor.byte_length > 7) { |
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|
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/* Base size of a Large resource descriptor */ |
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total_size = |
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sizeof(struct aml_resource_large_header); |
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} |
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/* Add the size of the vendor-specific data */ |
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total_size = (acpi_rs_length) |
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(total_size + resource->data.vendor.byte_length); |
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break; |
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|
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case ACPI_RESOURCE_TYPE_END_TAG: |
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/* |
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* End Tag: |
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* We are done -- return the accumulated total size. |
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*/ |
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*size_needed = aml_size_needed + total_size; |
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|
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/* Normal exit */ |
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return_ACPI_STATUS(AE_OK); |
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|
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case ACPI_RESOURCE_TYPE_ADDRESS16: |
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/* |
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* 16-Bit Address Resource: |
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* Add the size of the optional resource_source info |
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*/ |
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total_size = (acpi_rs_length)(total_size + |
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acpi_rs_struct_option_length |
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(&resource->data. |
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address16. |
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resource_source)); |
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break; |
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|
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case ACPI_RESOURCE_TYPE_ADDRESS32: |
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/* |
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* 32-Bit Address Resource: |
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* Add the size of the optional resource_source info |
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*/ |
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total_size = (acpi_rs_length)(total_size + |
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acpi_rs_struct_option_length |
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(&resource->data. |
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address32. |
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resource_source)); |
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break; |
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|
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case ACPI_RESOURCE_TYPE_ADDRESS64: |
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/* |
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* 64-Bit Address Resource: |
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* Add the size of the optional resource_source info |
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*/ |
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total_size = (acpi_rs_length)(total_size + |
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acpi_rs_struct_option_length |
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(&resource->data. |
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address64. |
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resource_source)); |
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break; |
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|
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case ACPI_RESOURCE_TYPE_EXTENDED_IRQ: |
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/* |
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* Extended IRQ Resource: |
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* Add the size of each additional optional interrupt beyond the |
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* required 1 (4 bytes for each u32 interrupt number) |
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*/ |
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total_size = (acpi_rs_length)(total_size + |
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((resource->data. |
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extended_irq. |
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interrupt_count - |
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1) * 4) + |
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/* Add the size of the optional resource_source info */ |
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acpi_rs_struct_option_length |
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(&resource->data. |
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extended_irq. |
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resource_source)); |
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break; |
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case ACPI_RESOURCE_TYPE_GPIO: |
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total_size = (acpi_rs_length)(total_size + |
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(resource->data.gpio. |
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pin_table_length * 2) + |
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resource->data.gpio. |
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resource_source. |
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string_length + |
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resource->data.gpio. |
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vendor_length); |
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break; |
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case ACPI_RESOURCE_TYPE_PIN_FUNCTION: |
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total_size = (acpi_rs_length)(total_size + |
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(resource->data. |
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pin_function. |
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pin_table_length * 2) + |
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resource->data. |
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pin_function. |
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resource_source. |
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string_length + |
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resource->data. |
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pin_function. |
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vendor_length); |
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break; |
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|
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case ACPI_RESOURCE_TYPE_SERIAL_BUS: |
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|
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total_size = |
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acpi_gbl_aml_resource_serial_bus_sizes[resource-> |
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data. |
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common_serial_bus. |
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type]; |
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total_size = (acpi_rs_length)(total_size + |
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resource->data. |
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i2c_serial_bus. |
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resource_source. |
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string_length + |
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resource->data. |
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i2c_serial_bus. |
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vendor_length); |
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break; |
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case ACPI_RESOURCE_TYPE_PIN_CONFIG: |
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total_size = (acpi_rs_length)(total_size + |
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(resource->data. |
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pin_config. |
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pin_table_length * 2) + |
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resource->data.pin_config. |
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resource_source. |
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string_length + |
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resource->data.pin_config. |
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vendor_length); |
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break; |
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|
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case ACPI_RESOURCE_TYPE_PIN_GROUP: |
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|
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total_size = (acpi_rs_length)(total_size + |
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(resource->data.pin_group. |
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pin_table_length * 2) + |
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resource->data.pin_group. |
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resource_label. |
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string_length + |
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resource->data.pin_group. |
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vendor_length); |
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|
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break; |
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|
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case ACPI_RESOURCE_TYPE_PIN_GROUP_FUNCTION: |
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|
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total_size = (acpi_rs_length)(total_size + |
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resource->data. |
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pin_group_function. |
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resource_source. |
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string_length + |
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resource->data. |
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pin_group_function. |
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resource_source_label. |
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string_length + |
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resource->data. |
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pin_group_function. |
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vendor_length); |
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|
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break; |
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|
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case ACPI_RESOURCE_TYPE_PIN_GROUP_CONFIG: |
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|
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total_size = (acpi_rs_length)(total_size + |
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resource->data. |
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pin_group_config. |
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resource_source. |
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string_length + |
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resource->data. |
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pin_group_config. |
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resource_source_label. |
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string_length + |
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resource->data. |
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pin_group_config. |
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vendor_length); |
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|
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break; |
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|
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default: |
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|
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break; |
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} |
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|
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/* Update the total */ |
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|
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aml_size_needed += total_size; |
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|
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/* Point to the next object */ |
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resource = |
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ACPI_ADD_PTR(struct acpi_resource, resource, |
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resource->length); |
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} |
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|
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/* Did not find an end_tag resource descriptor */ |
|
|
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return_ACPI_STATUS(AE_AML_NO_RESOURCE_END_TAG); |
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} |
|
|
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/******************************************************************************* |
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* |
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* FUNCTION: acpi_rs_get_list_length |
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* |
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* PARAMETERS: aml_buffer - Pointer to the resource byte stream |
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* aml_buffer_length - Size of aml_buffer |
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* size_needed - Where the size needed is returned |
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* |
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* RETURN: Status |
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* |
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* DESCRIPTION: Takes an external resource byte stream and calculates the size |
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* buffer needed to hold the corresponding internal resource |
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* descriptor linked list. |
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* |
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******************************************************************************/ |
|
|
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acpi_status |
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acpi_rs_get_list_length(u8 *aml_buffer, |
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u32 aml_buffer_length, acpi_size *size_needed) |
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{ |
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acpi_status status; |
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u8 *end_aml; |
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u8 *buffer; |
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u32 buffer_size; |
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u16 temp16; |
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u16 resource_length; |
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u32 extra_struct_bytes; |
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u8 resource_index; |
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u8 minimum_aml_resource_length; |
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union aml_resource *aml_resource; |
|
|
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ACPI_FUNCTION_TRACE(rs_get_list_length); |
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|
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*size_needed = ACPI_RS_SIZE_MIN; /* Minimum size is one end_tag */ |
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end_aml = aml_buffer + aml_buffer_length; |
|
|
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/* Walk the list of AML resource descriptors */ |
|
|
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while (aml_buffer < end_aml) { |
|
|
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/* Validate the Resource Type and Resource Length */ |
|
|
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status = |
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acpi_ut_validate_resource(NULL, aml_buffer, |
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&resource_index); |
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if (ACPI_FAILURE(status)) { |
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/* |
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* Exit on failure. Cannot continue because the descriptor length |
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* may be bogus also. |
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*/ |
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return_ACPI_STATUS(status); |
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} |
|
|
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aml_resource = (void *)aml_buffer; |
|
|
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/* Get the resource length and base (minimum) AML size */ |
|
|
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resource_length = acpi_ut_get_resource_length(aml_buffer); |
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minimum_aml_resource_length = |
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acpi_gbl_resource_aml_sizes[resource_index]; |
|
|
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/* |
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* Augment the size for descriptors with optional |
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* and/or variable length fields |
|
*/ |
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extra_struct_bytes = 0; |
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buffer = |
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aml_buffer + acpi_ut_get_resource_header_length(aml_buffer); |
|
|
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switch (acpi_ut_get_resource_type(aml_buffer)) { |
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case ACPI_RESOURCE_NAME_IRQ: |
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/* |
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* IRQ Resource: |
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* Get the number of bits set in the 16-bit IRQ mask |
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*/ |
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ACPI_MOVE_16_TO_16(&temp16, buffer); |
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extra_struct_bytes = acpi_rs_count_set_bits(temp16); |
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break; |
|
|
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case ACPI_RESOURCE_NAME_DMA: |
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/* |
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* DMA Resource: |
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* Get the number of bits set in the 8-bit DMA mask |
|
*/ |
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extra_struct_bytes = acpi_rs_count_set_bits(*buffer); |
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break; |
|
|
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case ACPI_RESOURCE_NAME_VENDOR_SMALL: |
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case ACPI_RESOURCE_NAME_VENDOR_LARGE: |
|
/* |
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* Vendor Resource: |
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* Get the number of vendor data bytes |
|
*/ |
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extra_struct_bytes = resource_length; |
|
|
|
/* |
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* There is already one byte included in the minimum |
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* descriptor size. If there are extra struct bytes, |
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* subtract one from the count. |
|
*/ |
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if (extra_struct_bytes) { |
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extra_struct_bytes--; |
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} |
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break; |
|
|
|
case ACPI_RESOURCE_NAME_END_TAG: |
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/* |
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* End Tag: This is the normal exit |
|
*/ |
|
return_ACPI_STATUS(AE_OK); |
|
|
|
case ACPI_RESOURCE_NAME_ADDRESS32: |
|
case ACPI_RESOURCE_NAME_ADDRESS16: |
|
case ACPI_RESOURCE_NAME_ADDRESS64: |
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/* |
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* Address Resource: |
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* Add the size of the optional resource_source |
|
*/ |
|
extra_struct_bytes = |
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acpi_rs_stream_option_length(resource_length, |
|
minimum_aml_resource_length); |
|
break; |
|
|
|
case ACPI_RESOURCE_NAME_EXTENDED_IRQ: |
|
/* |
|
* Extended IRQ Resource: |
|
* Using the interrupt_table_length, add 4 bytes for each additional |
|
* interrupt. Note: at least one interrupt is required and is |
|
* included in the minimum descriptor size (reason for the -1) |
|
*/ |
|
extra_struct_bytes = (buffer[1] - 1) * sizeof(u32); |
|
|
|
/* Add the size of the optional resource_source */ |
|
|
|
extra_struct_bytes += |
|
acpi_rs_stream_option_length(resource_length - |
|
extra_struct_bytes, |
|
minimum_aml_resource_length); |
|
break; |
|
|
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case ACPI_RESOURCE_NAME_GPIO: |
|
|
|
/* Vendor data is optional */ |
|
|
|
if (aml_resource->gpio.vendor_length) { |
|
extra_struct_bytes += |
|
aml_resource->gpio.vendor_offset - |
|
aml_resource->gpio.pin_table_offset + |
|
aml_resource->gpio.vendor_length; |
|
} else { |
|
extra_struct_bytes += |
|
aml_resource->large_header.resource_length + |
|
sizeof(struct aml_resource_large_header) - |
|
aml_resource->gpio.pin_table_offset; |
|
} |
|
break; |
|
|
|
case ACPI_RESOURCE_NAME_PIN_FUNCTION: |
|
|
|
/* Vendor data is optional */ |
|
|
|
if (aml_resource->pin_function.vendor_length) { |
|
extra_struct_bytes += |
|
aml_resource->pin_function.vendor_offset - |
|
aml_resource->pin_function. |
|
pin_table_offset + |
|
aml_resource->pin_function.vendor_length; |
|
} else { |
|
extra_struct_bytes += |
|
aml_resource->large_header.resource_length + |
|
sizeof(struct aml_resource_large_header) - |
|
aml_resource->pin_function.pin_table_offset; |
|
} |
|
break; |
|
|
|
case ACPI_RESOURCE_NAME_SERIAL_BUS: |
|
|
|
minimum_aml_resource_length = |
|
acpi_gbl_resource_aml_serial_bus_sizes |
|
[aml_resource->common_serial_bus.type]; |
|
extra_struct_bytes += |
|
aml_resource->common_serial_bus.resource_length - |
|
minimum_aml_resource_length; |
|
break; |
|
|
|
case ACPI_RESOURCE_NAME_PIN_CONFIG: |
|
|
|
/* Vendor data is optional */ |
|
|
|
if (aml_resource->pin_config.vendor_length) { |
|
extra_struct_bytes += |
|
aml_resource->pin_config.vendor_offset - |
|
aml_resource->pin_config.pin_table_offset + |
|
aml_resource->pin_config.vendor_length; |
|
} else { |
|
extra_struct_bytes += |
|
aml_resource->large_header.resource_length + |
|
sizeof(struct aml_resource_large_header) - |
|
aml_resource->pin_config.pin_table_offset; |
|
} |
|
break; |
|
|
|
case ACPI_RESOURCE_NAME_PIN_GROUP: |
|
|
|
extra_struct_bytes += |
|
aml_resource->pin_group.vendor_offset - |
|
aml_resource->pin_group.pin_table_offset + |
|
aml_resource->pin_group.vendor_length; |
|
|
|
break; |
|
|
|
case ACPI_RESOURCE_NAME_PIN_GROUP_FUNCTION: |
|
|
|
extra_struct_bytes += |
|
aml_resource->pin_group_function.vendor_offset - |
|
aml_resource->pin_group_function.res_source_offset + |
|
aml_resource->pin_group_function.vendor_length; |
|
|
|
break; |
|
|
|
case ACPI_RESOURCE_NAME_PIN_GROUP_CONFIG: |
|
|
|
extra_struct_bytes += |
|
aml_resource->pin_group_config.vendor_offset - |
|
aml_resource->pin_group_config.res_source_offset + |
|
aml_resource->pin_group_config.vendor_length; |
|
|
|
break; |
|
|
|
default: |
|
|
|
break; |
|
} |
|
|
|
/* |
|
* Update the required buffer size for the internal descriptor structs |
|
* |
|
* Important: Round the size up for the appropriate alignment. This |
|
* is a requirement on IA64. |
|
*/ |
|
if (acpi_ut_get_resource_type(aml_buffer) == |
|
ACPI_RESOURCE_NAME_SERIAL_BUS) { |
|
buffer_size = |
|
acpi_gbl_resource_struct_serial_bus_sizes |
|
[aml_resource->common_serial_bus.type] + |
|
extra_struct_bytes; |
|
} else { |
|
buffer_size = |
|
acpi_gbl_resource_struct_sizes[resource_index] + |
|
extra_struct_bytes; |
|
} |
|
|
|
buffer_size = (u32)ACPI_ROUND_UP_TO_NATIVE_WORD(buffer_size); |
|
*size_needed += buffer_size; |
|
|
|
ACPI_DEBUG_PRINT((ACPI_DB_RESOURCES, |
|
"Type %.2X, AmlLength %.2X InternalLength %.2X\n", |
|
acpi_ut_get_resource_type(aml_buffer), |
|
acpi_ut_get_descriptor_length(aml_buffer), |
|
buffer_size)); |
|
|
|
/* |
|
* Point to the next resource within the AML stream using the length |
|
* contained in the resource descriptor header |
|
*/ |
|
aml_buffer += acpi_ut_get_descriptor_length(aml_buffer); |
|
} |
|
|
|
/* Did not find an end_tag resource descriptor */ |
|
|
|
return_ACPI_STATUS(AE_AML_NO_RESOURCE_END_TAG); |
|
} |
|
|
|
/******************************************************************************* |
|
* |
|
* FUNCTION: acpi_rs_get_pci_routing_table_length |
|
* |
|
* PARAMETERS: package_object - Pointer to the package object |
|
* buffer_size_needed - u32 pointer of the size buffer |
|
* needed to properly return the |
|
* parsed data |
|
* |
|
* RETURN: Status |
|
* |
|
* DESCRIPTION: Given a package representing a PCI routing table, this |
|
* calculates the size of the corresponding linked list of |
|
* descriptions. |
|
* |
|
******************************************************************************/ |
|
|
|
acpi_status |
|
acpi_rs_get_pci_routing_table_length(union acpi_operand_object *package_object, |
|
acpi_size *buffer_size_needed) |
|
{ |
|
u32 number_of_elements; |
|
acpi_size temp_size_needed = 0; |
|
union acpi_operand_object **top_object_list; |
|
u32 index; |
|
union acpi_operand_object *package_element; |
|
union acpi_operand_object **sub_object_list; |
|
u8 name_found; |
|
u32 table_index; |
|
|
|
ACPI_FUNCTION_TRACE(rs_get_pci_routing_table_length); |
|
|
|
number_of_elements = package_object->package.count; |
|
|
|
/* |
|
* Calculate the size of the return buffer. |
|
* The base size is the number of elements * the sizes of the |
|
* structures. Additional space for the strings is added below. |
|
* The minus one is to subtract the size of the u8 Source[1] |
|
* member because it is added below. |
|
* |
|
* But each PRT_ENTRY structure has a pointer to a string and |
|
* the size of that string must be found. |
|
*/ |
|
top_object_list = package_object->package.elements; |
|
|
|
for (index = 0; index < number_of_elements; index++) { |
|
|
|
/* Dereference the subpackage */ |
|
|
|
package_element = *top_object_list; |
|
|
|
/* We must have a valid Package object */ |
|
|
|
if (!package_element || |
|
(package_element->common.type != ACPI_TYPE_PACKAGE)) { |
|
return_ACPI_STATUS(AE_AML_OPERAND_TYPE); |
|
} |
|
|
|
/* |
|
* The sub_object_list will now point to an array of the |
|
* four IRQ elements: Address, Pin, Source and source_index |
|
*/ |
|
sub_object_list = package_element->package.elements; |
|
|
|
/* Scan the irq_table_elements for the Source Name String */ |
|
|
|
name_found = FALSE; |
|
|
|
for (table_index = 0; |
|
table_index < package_element->package.count |
|
&& !name_found; table_index++) { |
|
if (*sub_object_list && /* Null object allowed */ |
|
((ACPI_TYPE_STRING == |
|
(*sub_object_list)->common.type) || |
|
((ACPI_TYPE_LOCAL_REFERENCE == |
|
(*sub_object_list)->common.type) && |
|
((*sub_object_list)->reference.class == |
|
ACPI_REFCLASS_NAME)))) { |
|
name_found = TRUE; |
|
} else { |
|
/* Look at the next element */ |
|
|
|
sub_object_list++; |
|
} |
|
} |
|
|
|
temp_size_needed += (sizeof(struct acpi_pci_routing_table) - 4); |
|
|
|
/* Was a String type found? */ |
|
|
|
if (name_found) { |
|
if ((*sub_object_list)->common.type == ACPI_TYPE_STRING) { |
|
/* |
|
* The length String.Length field does not include the |
|
* terminating NULL, add 1 |
|
*/ |
|
temp_size_needed += ((acpi_size) |
|
(*sub_object_list)->string. |
|
length + 1); |
|
} else { |
|
temp_size_needed += acpi_ns_get_pathname_length((*sub_object_list)->reference.node); |
|
} |
|
} else { |
|
/* |
|
* If no name was found, then this is a NULL, which is |
|
* translated as a u32 zero. |
|
*/ |
|
temp_size_needed += sizeof(u32); |
|
} |
|
|
|
/* Round up the size since each element must be aligned */ |
|
|
|
temp_size_needed = ACPI_ROUND_UP_TO_64BIT(temp_size_needed); |
|
|
|
/* Point to the next union acpi_operand_object */ |
|
|
|
top_object_list++; |
|
} |
|
|
|
/* |
|
* Add an extra element to the end of the list, essentially a |
|
* NULL terminator |
|
*/ |
|
*buffer_size_needed = |
|
temp_size_needed + sizeof(struct acpi_pci_routing_table); |
|
return_ACPI_STATUS(AE_OK); |
|
}
|
|
|