![Lv Zheng](/assets/img/avatar_default.png)
ACPICA commit b2294cae776f5a66a7697414b21949d307e6856f This patch removes unwanted spaces for typedef. This solution doesn't cover function types. Note that the linuxize result of this commit is very giant and should have many conflicts against the current Linux upstream. Thus it is required to modify the linuxize result of this commit and the commits around it manually in order to have them merged to the Linux upstream. Since this is very costy, we should do this only once, and if we can't ensure to do this only once, we need to revert the Linux code to the wrong indentation result before merging the linuxize result of this commit. Lv Zheng. Link: https://github.com/acpica/acpica/commit/b2294cae Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
482 lines
15 KiB
C
482 lines
15 KiB
C
/*******************************************************************************
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*
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* Module Name: rscreate - Create resource lists/tables
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*
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******************************************************************************/
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/*
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* Copyright (C) 2000 - 2016, Intel Corp.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions, and the following disclaimer,
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* without modification.
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* 2. Redistributions in binary form must reproduce at minimum a disclaimer
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* substantially similar to the "NO WARRANTY" disclaimer below
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* ("Disclaimer") and any redistribution must be conditioned upon
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* including a substantially similar Disclaimer requirement for further
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* binary redistribution.
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* 3. Neither the names of the above-listed copyright holders nor the names
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* of any contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* Alternatively, this software may be distributed under the terms of the
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* GNU General Public License ("GPL") version 2 as published by the Free
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* Software Foundation.
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*
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* NO WARRANTY
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGES.
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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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#define _COMPONENT ACPI_RESOURCES
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ACPI_MODULE_NAME("rscreate")
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/*******************************************************************************
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*
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* FUNCTION: acpi_buffer_to_resource
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*
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* PARAMETERS: aml_buffer - Pointer to the resource byte stream
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* aml_buffer_length - Length of the aml_buffer
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* resource_ptr - Where the converted resource is returned
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*
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* RETURN: Status
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*
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* DESCRIPTION: Convert a raw AML buffer to a resource list
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*
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******************************************************************************/
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acpi_status
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acpi_buffer_to_resource(u8 *aml_buffer,
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u16 aml_buffer_length,
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struct acpi_resource **resource_ptr)
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{
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acpi_status status;
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acpi_size list_size_needed;
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void *resource;
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void *current_resource_ptr;
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ACPI_FUNCTION_TRACE(acpi_buffer_to_resource);
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/*
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* Note: we allow AE_AML_NO_RESOURCE_END_TAG, since an end tag
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* is not required here.
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*/
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/* Get the required length for the converted resource */
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status =
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acpi_rs_get_list_length(aml_buffer, aml_buffer_length,
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&list_size_needed);
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if (status == AE_AML_NO_RESOURCE_END_TAG) {
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status = AE_OK;
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}
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if (ACPI_FAILURE(status)) {
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return_ACPI_STATUS(status);
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}
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/* Allocate a buffer for the converted resource */
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resource = ACPI_ALLOCATE_ZEROED(list_size_needed);
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current_resource_ptr = resource;
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if (!resource) {
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return_ACPI_STATUS(AE_NO_MEMORY);
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}
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/* Perform the AML-to-Resource conversion */
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status = acpi_ut_walk_aml_resources(NULL, aml_buffer, aml_buffer_length,
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acpi_rs_convert_aml_to_resources,
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¤t_resource_ptr);
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if (status == AE_AML_NO_RESOURCE_END_TAG) {
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status = AE_OK;
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}
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if (ACPI_FAILURE(status)) {
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ACPI_FREE(resource);
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} else {
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*resource_ptr = resource;
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}
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return_ACPI_STATUS(status);
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}
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ACPI_EXPORT_SYMBOL(acpi_buffer_to_resource)
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/*******************************************************************************
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*
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* FUNCTION: acpi_rs_create_resource_list
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*
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* PARAMETERS: aml_buffer - Pointer to the resource byte stream
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* output_buffer - Pointer to the user's buffer
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*
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* RETURN: Status: AE_OK if okay, else a valid acpi_status code
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* If output_buffer is not large enough, output_buffer_length
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* indicates how large output_buffer should be, else it
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* indicates how may u8 elements of output_buffer are valid.
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*
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* DESCRIPTION: Takes the byte stream returned from a _CRS, _PRS control method
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* execution and parses the stream to create a linked list
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* of device resources.
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*
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******************************************************************************/
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acpi_status
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acpi_rs_create_resource_list(union acpi_operand_object *aml_buffer,
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struct acpi_buffer *output_buffer)
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{
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acpi_status status;
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u8 *aml_start;
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acpi_size list_size_needed = 0;
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u32 aml_buffer_length;
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void *resource;
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ACPI_FUNCTION_TRACE(rs_create_resource_list);
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ACPI_DEBUG_PRINT((ACPI_DB_INFO, "AmlBuffer = %p\n", aml_buffer));
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/* Params already validated, so we don't re-validate here */
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aml_buffer_length = aml_buffer->buffer.length;
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aml_start = aml_buffer->buffer.pointer;
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/*
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* Pass the aml_buffer into a module that can calculate
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* the buffer size needed for the linked list
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*/
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status = acpi_rs_get_list_length(aml_start, aml_buffer_length,
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&list_size_needed);
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ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Status=%X ListSizeNeeded=%X\n",
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status, (u32) list_size_needed));
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if (ACPI_FAILURE(status)) {
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return_ACPI_STATUS(status);
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}
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/* Validate/Allocate/Clear caller buffer */
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status = acpi_ut_initialize_buffer(output_buffer, list_size_needed);
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if (ACPI_FAILURE(status)) {
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return_ACPI_STATUS(status);
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}
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/* Do the conversion */
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resource = output_buffer->pointer;
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status = acpi_ut_walk_aml_resources(NULL, aml_start, aml_buffer_length,
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acpi_rs_convert_aml_to_resources,
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&resource);
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if (ACPI_FAILURE(status)) {
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return_ACPI_STATUS(status);
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}
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ACPI_DEBUG_PRINT((ACPI_DB_INFO, "OutputBuffer %p Length %X\n",
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output_buffer->pointer, (u32) output_buffer->length));
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return_ACPI_STATUS(AE_OK);
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}
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/*******************************************************************************
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*
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* FUNCTION: acpi_rs_create_pci_routing_table
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*
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* PARAMETERS: package_object - Pointer to a package containing one
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* of more ACPI_OPERAND_OBJECTs
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* output_buffer - Pointer to the user's buffer
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*
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* RETURN: Status AE_OK if okay, else a valid acpi_status code.
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* If the output_buffer is too small, the error will be
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* AE_BUFFER_OVERFLOW and output_buffer->Length will point
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* to the size buffer needed.
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*
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* DESCRIPTION: Takes the union acpi_operand_object package and creates a
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* linked list of PCI interrupt descriptions
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*
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* NOTE: It is the caller's responsibility to ensure that the start of the
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* output buffer is aligned properly (if necessary).
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*
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******************************************************************************/
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acpi_status
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acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object,
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struct acpi_buffer *output_buffer)
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{
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u8 *buffer;
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union acpi_operand_object **top_object_list;
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union acpi_operand_object **sub_object_list;
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union acpi_operand_object *obj_desc;
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acpi_size buffer_size_needed = 0;
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u32 number_of_elements;
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u32 index;
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struct acpi_pci_routing_table *user_prt;
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struct acpi_namespace_node *node;
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acpi_status status;
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struct acpi_buffer path_buffer;
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ACPI_FUNCTION_TRACE(rs_create_pci_routing_table);
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/* Params already validated, so we don't re-validate here */
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/* Get the required buffer length */
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status =
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acpi_rs_get_pci_routing_table_length(package_object,
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&buffer_size_needed);
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if (ACPI_FAILURE(status)) {
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return_ACPI_STATUS(status);
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}
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ACPI_DEBUG_PRINT((ACPI_DB_INFO, "BufferSizeNeeded = %X\n",
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(u32) buffer_size_needed));
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/* Validate/Allocate/Clear caller buffer */
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status = acpi_ut_initialize_buffer(output_buffer, buffer_size_needed);
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if (ACPI_FAILURE(status)) {
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return_ACPI_STATUS(status);
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}
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/*
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* Loop through the ACPI_INTERNAL_OBJECTS - Each object should be a
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* package that in turn contains an u64 Address, a u8 Pin,
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* a Name, and a u8 source_index.
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*/
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top_object_list = package_object->package.elements;
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number_of_elements = package_object->package.count;
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buffer = output_buffer->pointer;
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user_prt = ACPI_CAST_PTR(struct acpi_pci_routing_table, buffer);
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for (index = 0; index < number_of_elements; index++) {
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/*
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* Point user_prt past this current structure
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*
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* NOTE: On the first iteration, user_prt->Length will
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* be zero because we cleared the return buffer earlier
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*/
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buffer += user_prt->length;
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user_prt = ACPI_CAST_PTR(struct acpi_pci_routing_table, buffer);
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/*
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* Fill in the Length field with the information we have at this
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* point. The minus four is to subtract the size of the u8
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* Source[4] member because it is added below.
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*/
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user_prt->length = (sizeof(struct acpi_pci_routing_table) - 4);
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/* Each subpackage must be of length 4 */
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if ((*top_object_list)->package.count != 4) {
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ACPI_ERROR((AE_INFO,
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"(PRT[%u]) Need package of length 4, found length %u",
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index, (*top_object_list)->package.count));
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return_ACPI_STATUS(AE_AML_PACKAGE_LIMIT);
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}
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/*
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* Dereference the subpackage.
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* The sub_object_list will now point to an array of the four IRQ
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* elements: [Address, Pin, Source, source_index]
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*/
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sub_object_list = (*top_object_list)->package.elements;
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/* 1) First subobject: Dereference the PRT.Address */
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obj_desc = sub_object_list[0];
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if (!obj_desc || obj_desc->common.type != ACPI_TYPE_INTEGER) {
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ACPI_ERROR((AE_INFO,
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"(PRT[%u].Address) Need Integer, found %s",
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index,
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acpi_ut_get_object_type_name(obj_desc)));
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return_ACPI_STATUS(AE_BAD_DATA);
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}
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user_prt->address = obj_desc->integer.value;
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/* 2) Second subobject: Dereference the PRT.Pin */
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obj_desc = sub_object_list[1];
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if (!obj_desc || obj_desc->common.type != ACPI_TYPE_INTEGER) {
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ACPI_ERROR((AE_INFO,
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"(PRT[%u].Pin) Need Integer, found %s",
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index,
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acpi_ut_get_object_type_name(obj_desc)));
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return_ACPI_STATUS(AE_BAD_DATA);
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}
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user_prt->pin = (u32) obj_desc->integer.value;
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/*
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* 3) Third subobject: Dereference the PRT.source_name
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* The name may be unresolved (slack mode), so allow a null object
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*/
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obj_desc = sub_object_list[2];
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if (obj_desc) {
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switch (obj_desc->common.type) {
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case ACPI_TYPE_LOCAL_REFERENCE:
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if (obj_desc->reference.class !=
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ACPI_REFCLASS_NAME) {
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ACPI_ERROR((AE_INFO,
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"(PRT[%u].Source) Need name, found Reference Class 0x%X",
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index,
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obj_desc->reference.class));
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return_ACPI_STATUS(AE_BAD_DATA);
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}
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node = obj_desc->reference.node;
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/* Use *remaining* length of the buffer as max for pathname */
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path_buffer.length = output_buffer->length -
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(u32) ((u8 *) user_prt->source -
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(u8 *) output_buffer->pointer);
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path_buffer.pointer = user_prt->source;
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status = acpi_ns_handle_to_pathname((acpi_handle)node, &path_buffer, FALSE);
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/* +1 to include null terminator */
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user_prt->length +=
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(u32)strlen(user_prt->source) + 1;
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break;
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case ACPI_TYPE_STRING:
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strcpy(user_prt->source,
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obj_desc->string.pointer);
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/*
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* Add to the Length field the length of the string
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* (add 1 for terminator)
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*/
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user_prt->length += obj_desc->string.length + 1;
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break;
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case ACPI_TYPE_INTEGER:
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/*
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* If this is a number, then the Source Name is NULL, since
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* the entire buffer was zeroed out, we can leave this alone.
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*
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* Add to the Length field the length of the u32 NULL
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*/
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user_prt->length += sizeof(u32);
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break;
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default:
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ACPI_ERROR((AE_INFO,
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"(PRT[%u].Source) Need Ref/String/Integer, found %s",
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index,
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acpi_ut_get_object_type_name
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(obj_desc)));
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return_ACPI_STATUS(AE_BAD_DATA);
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}
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}
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/* Now align the current length */
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user_prt->length =
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(u32) ACPI_ROUND_UP_TO_64BIT(user_prt->length);
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/* 4) Fourth subobject: Dereference the PRT.source_index */
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obj_desc = sub_object_list[3];
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if (!obj_desc || obj_desc->common.type != ACPI_TYPE_INTEGER) {
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ACPI_ERROR((AE_INFO,
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"(PRT[%u].SourceIndex) Need Integer, found %s",
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index,
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acpi_ut_get_object_type_name(obj_desc)));
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return_ACPI_STATUS(AE_BAD_DATA);
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}
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user_prt->source_index = (u32) obj_desc->integer.value;
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/* Point to the next union acpi_operand_object in the top level package */
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top_object_list++;
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}
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ACPI_DEBUG_PRINT((ACPI_DB_INFO, "OutputBuffer %p Length %X\n",
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output_buffer->pointer, (u32) output_buffer->length));
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return_ACPI_STATUS(AE_OK);
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}
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/*******************************************************************************
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*
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* FUNCTION: acpi_rs_create_aml_resources
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*
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* PARAMETERS: resource_list - Pointer to the resource list buffer
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* output_buffer - Where the AML buffer is returned
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*
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* RETURN: Status AE_OK if okay, else a valid acpi_status code.
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* If the output_buffer is too small, the error will be
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* AE_BUFFER_OVERFLOW and output_buffer->Length will point
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* to the size buffer needed.
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*
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* DESCRIPTION: Converts a list of device resources to an AML bytestream
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* to be used as input for the _SRS control method.
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*
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******************************************************************************/
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acpi_status
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acpi_rs_create_aml_resources(struct acpi_buffer *resource_list,
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struct acpi_buffer *output_buffer)
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{
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acpi_status status;
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acpi_size aml_size_needed = 0;
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ACPI_FUNCTION_TRACE(rs_create_aml_resources);
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/* Params already validated, no need to re-validate here */
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ACPI_DEBUG_PRINT((ACPI_DB_INFO, "ResourceList Buffer = %p\n",
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resource_list->pointer));
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/* Get the buffer size needed for the AML byte stream */
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status =
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acpi_rs_get_aml_length(resource_list->pointer,
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resource_list->length, &aml_size_needed);
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ACPI_DEBUG_PRINT((ACPI_DB_INFO, "AmlSizeNeeded=%X, %s\n",
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(u32)aml_size_needed, acpi_format_exception(status)));
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if (ACPI_FAILURE(status)) {
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return_ACPI_STATUS(status);
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}
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/* Validate/Allocate/Clear caller buffer */
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status = acpi_ut_initialize_buffer(output_buffer, aml_size_needed);
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if (ACPI_FAILURE(status)) {
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return_ACPI_STATUS(status);
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}
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/* Do the conversion */
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status = acpi_rs_convert_resources_to_aml(resource_list->pointer,
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aml_size_needed,
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output_buffer->pointer);
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if (ACPI_FAILURE(status)) {
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return_ACPI_STATUS(status);
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}
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ACPI_DEBUG_PRINT((ACPI_DB_INFO, "OutputBuffer %p Length %X\n",
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output_buffer->pointer, (u32) output_buffer->length));
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return_ACPI_STATUS(AE_OK);
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}
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