![Bob Moore](/assets/img/avatar_default.png)
ACPICA commit c04d310039d3e0ed1cb62876fe7e596fbc75ab01 ACPICA commit a65c1df7e6b4bad8e37df822018c40c6c446add9 The key feature of this utility is that the original comments within the input ASL files are preserved during the conversion process, and included within the converted ASL+ file -- thus creating a transparent conversion of existing ASL files to ASL+ (ASL 2.0) This patch is an automatic generation of the ASL converter commit, Linux kernel isn't affected by the functionality provided in this commit, but requires the linuxized changes to support future ACPICA release automation. Link: https://github.com/acpica/acpica/commit/c04d3100 Link: https://github.com/acpica/acpica/commit/a65c1df7 Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Jung-uk Kim <jkim@FreeBSD.org> Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
392 lines
10 KiB
C
392 lines
10 KiB
C
/******************************************************************************
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*
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* Module Name: utalloc - local memory allocation routines
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*
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*****************************************************************************/
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/*
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* Copyright (C) 2000 - 2017, 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 "acdebug.h"
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#define _COMPONENT ACPI_UTILITIES
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ACPI_MODULE_NAME("utalloc")
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#if !defined (USE_NATIVE_ALLOCATE_ZEROED)
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/*******************************************************************************
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*
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* FUNCTION: acpi_os_allocate_zeroed
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*
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* PARAMETERS: size - Size of the allocation
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*
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* RETURN: Address of the allocated memory on success, NULL on failure.
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*
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* DESCRIPTION: Subsystem equivalent of calloc. Allocate and zero memory.
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* This is the default implementation. Can be overridden via the
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* USE_NATIVE_ALLOCATE_ZEROED flag.
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*
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******************************************************************************/
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void *acpi_os_allocate_zeroed(acpi_size size)
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{
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void *allocation;
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ACPI_FUNCTION_ENTRY();
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allocation = acpi_os_allocate(size);
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if (allocation) {
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/* Clear the memory block */
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memset(allocation, 0, size);
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}
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return (allocation);
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}
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#endif /* !USE_NATIVE_ALLOCATE_ZEROED */
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/*******************************************************************************
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*
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* FUNCTION: acpi_ut_create_caches
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*
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* PARAMETERS: None
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*
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* RETURN: Status
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*
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* DESCRIPTION: Create all local caches
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*
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******************************************************************************/
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acpi_status acpi_ut_create_caches(void)
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{
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acpi_status status;
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/* Object Caches, for frequently used objects */
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status =
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acpi_os_create_cache("Acpi-Namespace",
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sizeof(struct acpi_namespace_node),
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ACPI_MAX_NAMESPACE_CACHE_DEPTH,
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&acpi_gbl_namespace_cache);
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if (ACPI_FAILURE(status)) {
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return (status);
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}
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status =
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acpi_os_create_cache("Acpi-State", sizeof(union acpi_generic_state),
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ACPI_MAX_STATE_CACHE_DEPTH,
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&acpi_gbl_state_cache);
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if (ACPI_FAILURE(status)) {
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return (status);
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}
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status =
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acpi_os_create_cache("Acpi-Parse",
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sizeof(struct acpi_parse_obj_common),
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ACPI_MAX_PARSE_CACHE_DEPTH,
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&acpi_gbl_ps_node_cache);
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if (ACPI_FAILURE(status)) {
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return (status);
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}
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status =
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acpi_os_create_cache("Acpi-ParseExt",
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sizeof(struct acpi_parse_obj_named),
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ACPI_MAX_EXTPARSE_CACHE_DEPTH,
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&acpi_gbl_ps_node_ext_cache);
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if (ACPI_FAILURE(status)) {
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return (status);
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}
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status =
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acpi_os_create_cache("Acpi-Operand",
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sizeof(union acpi_operand_object),
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ACPI_MAX_OBJECT_CACHE_DEPTH,
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&acpi_gbl_operand_cache);
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if (ACPI_FAILURE(status)) {
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return (status);
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}
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#ifdef ACPI_ASL_COMPILER
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/*
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* For use with the ASL-/ASL+ option. This cache keeps track of regular
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* 0xA9 0x01 comments.
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*/
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status =
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acpi_os_create_cache("Acpi-Comment",
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sizeof(struct acpi_comment_node),
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ACPI_MAX_COMMENT_CACHE_DEPTH,
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&acpi_gbl_reg_comment_cache);
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if (ACPI_FAILURE(status)) {
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return (status);
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}
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/*
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* This cache keeps track of the starting addresses of where the comments
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* lie. This helps prevent duplication of comments.
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*/
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status =
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acpi_os_create_cache("Acpi-Comment-Addr",
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sizeof(struct acpi_comment_addr_node),
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ACPI_MAX_COMMENT_CACHE_DEPTH,
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&acpi_gbl_comment_addr_cache);
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if (ACPI_FAILURE(status)) {
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return (status);
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}
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/*
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* This cache will be used for nodes that represent files.
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*/
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status =
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acpi_os_create_cache("Acpi-File", sizeof(struct acpi_file_node),
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ACPI_MAX_COMMENT_CACHE_DEPTH,
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&acpi_gbl_file_cache);
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if (ACPI_FAILURE(status)) {
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return (status);
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}
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#endif
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#ifdef ACPI_DBG_TRACK_ALLOCATIONS
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/* Memory allocation lists */
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status = acpi_ut_create_list("Acpi-Global", 0, &acpi_gbl_global_list);
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if (ACPI_FAILURE(status)) {
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return (status);
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}
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status =
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acpi_ut_create_list("Acpi-Namespace",
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sizeof(struct acpi_namespace_node),
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&acpi_gbl_ns_node_list);
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if (ACPI_FAILURE(status)) {
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return (status);
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}
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#endif
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return (AE_OK);
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}
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/*******************************************************************************
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*
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* FUNCTION: acpi_ut_delete_caches
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*
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* PARAMETERS: None
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*
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* RETURN: Status
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*
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* DESCRIPTION: Purge and delete all local caches
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*
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******************************************************************************/
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acpi_status acpi_ut_delete_caches(void)
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{
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#ifdef ACPI_DBG_TRACK_ALLOCATIONS
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char buffer[7];
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if (acpi_gbl_display_final_mem_stats) {
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strcpy(buffer, "MEMORY");
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(void)acpi_db_display_statistics(buffer);
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}
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#endif
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(void)acpi_os_delete_cache(acpi_gbl_namespace_cache);
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acpi_gbl_namespace_cache = NULL;
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(void)acpi_os_delete_cache(acpi_gbl_state_cache);
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acpi_gbl_state_cache = NULL;
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(void)acpi_os_delete_cache(acpi_gbl_operand_cache);
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acpi_gbl_operand_cache = NULL;
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(void)acpi_os_delete_cache(acpi_gbl_ps_node_cache);
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acpi_gbl_ps_node_cache = NULL;
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(void)acpi_os_delete_cache(acpi_gbl_ps_node_ext_cache);
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acpi_gbl_ps_node_ext_cache = NULL;
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#ifdef ACPI_ASL_COMPILER
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(void)acpi_os_delete_cache(acpi_gbl_reg_comment_cache);
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acpi_gbl_reg_comment_cache = NULL;
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(void)acpi_os_delete_cache(acpi_gbl_comment_addr_cache);
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acpi_gbl_comment_addr_cache = NULL;
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(void)acpi_os_delete_cache(acpi_gbl_file_cache);
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acpi_gbl_file_cache = NULL;
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#endif
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#ifdef ACPI_DBG_TRACK_ALLOCATIONS
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/* Debug only - display leftover memory allocation, if any */
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acpi_ut_dump_allocations(ACPI_UINT32_MAX, NULL);
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/* Free memory lists */
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acpi_os_free(acpi_gbl_global_list);
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acpi_gbl_global_list = NULL;
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acpi_os_free(acpi_gbl_ns_node_list);
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acpi_gbl_ns_node_list = NULL;
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#endif
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return (AE_OK);
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}
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/*******************************************************************************
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*
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* FUNCTION: acpi_ut_validate_buffer
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*
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* PARAMETERS: buffer - Buffer descriptor to be validated
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*
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* RETURN: Status
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*
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* DESCRIPTION: Perform parameter validation checks on an struct acpi_buffer
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*
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******************************************************************************/
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acpi_status acpi_ut_validate_buffer(struct acpi_buffer *buffer)
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{
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/* Obviously, the structure pointer must be valid */
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if (!buffer) {
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return (AE_BAD_PARAMETER);
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}
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/* Special semantics for the length */
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if ((buffer->length == ACPI_NO_BUFFER) ||
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(buffer->length == ACPI_ALLOCATE_BUFFER) ||
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(buffer->length == ACPI_ALLOCATE_LOCAL_BUFFER)) {
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return (AE_OK);
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}
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/* Length is valid, the buffer pointer must be also */
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if (!buffer->pointer) {
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return (AE_BAD_PARAMETER);
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}
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return (AE_OK);
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}
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/*******************************************************************************
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*
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* FUNCTION: acpi_ut_initialize_buffer
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*
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* PARAMETERS: buffer - Buffer to be validated
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* required_length - Length needed
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*
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* RETURN: Status
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*
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* DESCRIPTION: Validate that the buffer is of the required length or
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* allocate a new buffer. Returned buffer is always zeroed.
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*
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******************************************************************************/
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acpi_status
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acpi_ut_initialize_buffer(struct acpi_buffer *buffer, acpi_size required_length)
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{
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acpi_size input_buffer_length;
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/* Parameter validation */
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if (!buffer || !required_length) {
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return (AE_BAD_PARAMETER);
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}
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/*
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* Buffer->Length is used as both an input and output parameter. Get the
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* input actual length and set the output required buffer length.
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*/
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input_buffer_length = buffer->length;
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buffer->length = required_length;
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/*
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* The input buffer length contains the actual buffer length, or the type
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* of buffer to be allocated by this routine.
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*/
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switch (input_buffer_length) {
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case ACPI_NO_BUFFER:
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/* Return the exception (and the required buffer length) */
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return (AE_BUFFER_OVERFLOW);
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case ACPI_ALLOCATE_BUFFER:
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/*
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* Allocate a new buffer. We directectly call acpi_os_allocate here to
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* purposefully bypass the (optionally enabled) internal allocation
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* tracking mechanism since we only want to track internal
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* allocations. Note: The caller should use acpi_os_free to free this
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* buffer created via ACPI_ALLOCATE_BUFFER.
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*/
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buffer->pointer = acpi_os_allocate(required_length);
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break;
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case ACPI_ALLOCATE_LOCAL_BUFFER:
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/* Allocate a new buffer with local interface to allow tracking */
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buffer->pointer = ACPI_ALLOCATE(required_length);
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break;
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default:
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/* Existing buffer: Validate the size of the buffer */
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if (input_buffer_length < required_length) {
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return (AE_BUFFER_OVERFLOW);
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}
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break;
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}
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/* Validate allocation from above or input buffer pointer */
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if (!buffer->pointer) {
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return (AE_NO_MEMORY);
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}
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/* Have a valid buffer, clear it */
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memset(buffer->pointer, 0, required_length);
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return (AE_OK);
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}
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