Release 4.11 drivers/acpi/acpica/utxfinit.c
/******************************************************************************
*
* Module Name: utxfinit - External interfaces for ACPICA initialization
*
*****************************************************************************/
/*
* Copyright (C) 2000 - 2017, Intel Corp.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions, and the following disclaimer,
* without modification.
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
* substantially similar to the "NO WARRANTY" disclaimer below
* ("Disclaimer") and any redistribution must be conditioned upon
* including a substantially similar Disclaimer requirement for further
* binary redistribution.
* 3. Neither the names of the above-listed copyright holders nor the names
* of any contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* Alternatively, this software may be distributed under the terms of the
* GNU General Public License ("GPL") version 2 as published by the Free
* Software Foundation.
*
* NO WARRANTY
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGES.
*/
#define EXPORT_ACPI_INTERFACES
#include <acpi/acpi.h>
#include "accommon.h"
#include "acevents.h"
#include "acnamesp.h"
#include "acdebug.h"
#include "actables.h"
#define _COMPONENT ACPI_UTILITIES
ACPI_MODULE_NAME("utxfinit")
/* For acpi_exec only */
void ae_do_object_overrides(void);
/*******************************************************************************
*
* FUNCTION: acpi_initialize_subsystem
*
* PARAMETERS: None
*
* RETURN: Status
*
* DESCRIPTION: Initializes all global variables. This is the first function
* called, so any early initialization belongs here.
*
******************************************************************************/
acpi_status ACPI_INIT_FUNCTION acpi_initialize_subsystem(void)
{
acpi_status status;
ACPI_FUNCTION_TRACE(acpi_initialize_subsystem);
acpi_gbl_startup_flags = ACPI_SUBSYSTEM_INITIALIZE;
ACPI_DEBUG_EXEC(acpi_ut_init_stack_ptr_trace());
/* Initialize the OS-Dependent layer */
status = acpi_os_initialize();
if (ACPI_FAILURE(status)) {
ACPI_EXCEPTION((AE_INFO, status, "During OSL initialization"));
return_ACPI_STATUS(status);
}
/* Initialize all globals used by the subsystem */
status = acpi_ut_init_globals();
if (ACPI_FAILURE(status)) {
ACPI_EXCEPTION((AE_INFO, status,
"During initialization of globals"));
return_ACPI_STATUS(status);
}
/* Create the default mutex objects */
status = acpi_ut_mutex_initialize();
if (ACPI_FAILURE(status)) {
ACPI_EXCEPTION((AE_INFO, status,
"During Global Mutex creation"));
return_ACPI_STATUS(status);
}
/*
* Initialize the namespace manager and
* the root of the namespace tree
*/
status = acpi_ns_root_initialize();
if (ACPI_FAILURE(status)) {
ACPI_EXCEPTION((AE_INFO, status,
"During Namespace initialization"));
return_ACPI_STATUS(status);
}
/* Initialize the global OSI interfaces list with the static names */
status = acpi_ut_initialize_interfaces();
if (ACPI_FAILURE(status)) {
ACPI_EXCEPTION((AE_INFO, status,
"During OSI interfaces initialization"));
return_ACPI_STATUS(status);
}
return_ACPI_STATUS(AE_OK);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Robert Moore | 185 | 99.46% | 2 | 66.67% |
| Lv Zheng | 1 | 0.54% | 1 | 33.33% |
| Total | 186 | 100.00% | 3 | 100.00% |
ACPI_EXPORT_SYMBOL_INIT(acpi_initialize_subsystem)
/*******************************************************************************
*
* FUNCTION: acpi_enable_subsystem
*
* PARAMETERS: flags - Init/enable Options
*
* RETURN: Status
*
* DESCRIPTION: Completes the subsystem initialization including hardware.
* Puts system into ACPI mode if it isn't already.
*
******************************************************************************/
acpi_status ACPI_INIT_FUNCTION acpi_enable_subsystem(u32 flags)
{
acpi_status status = AE_OK;
ACPI_FUNCTION_TRACE(acpi_enable_subsystem);
/*
* The early initialization phase is complete. The namespace is loaded,
* and we can now support address spaces other than Memory, I/O, and
* PCI_Config.
*/
acpi_gbl_early_initialization = FALSE;
#if (!ACPI_REDUCED_HARDWARE)
/* Enable ACPI mode */
if (!(flags & ACPI_NO_ACPI_ENABLE)) {
ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
"[Init] Going into ACPI mode\n"));
acpi_gbl_original_mode = acpi_hw_get_mode();
status = acpi_enable();
if (ACPI_FAILURE(status)) {
ACPI_WARNING((AE_INFO, "AcpiEnable failed"));
return_ACPI_STATUS(status);
}
}
/*
* Obtain a permanent mapping for the FACS. This is required for the
* Global Lock and the Firmware Waking Vector
*/
if (!(flags & ACPI_NO_FACS_INIT)) {
status = acpi_tb_initialize_facs();
if (ACPI_FAILURE(status)) {
ACPI_WARNING((AE_INFO, "Could not map the FACS table"));
return_ACPI_STATUS(status);
}
}
/*
* Initialize ACPI Event handling (Fixed and General Purpose)
*
* Note1: We must have the hardware and events initialized before we can
* execute any control methods safely. Any control method can require
* ACPI hardware support, so the hardware must be fully initialized before
* any method execution!
*
* Note2: Fixed events are initialized and enabled here. GPEs are
* initialized, but cannot be enabled until after the hardware is
* completely initialized (SCI and global_lock activated) and the various
* initialization control methods are run (_REG, _STA, _INI) on the
* entire namespace.
*/
if (!(flags & ACPI_NO_EVENT_INIT)) {
ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
"[Init] Initializing ACPI events\n"));
status = acpi_ev_initialize_events();
if (ACPI_FAILURE(status)) {
return_ACPI_STATUS(status);
}
}
/*
* Install the SCI handler and Global Lock handler. This completes the
* hardware initialization.
*/
if (!(flags & ACPI_NO_HANDLER_INIT)) {
ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
"[Init] Installing SCI/GL handlers\n"));
status = acpi_ev_install_xrupt_handlers();
if (ACPI_FAILURE(status)) {
return_ACPI_STATUS(status);
}
}
#endif /* !ACPI_REDUCED_HARDWARE */
return_ACPI_STATUS(status);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Robert Moore | 200 | 94.34% | 2 | 50.00% |
| Lv Zheng | 12 | 5.66% | 2 | 50.00% |
| Total | 212 | 100.00% | 4 | 100.00% |
ACPI_EXPORT_SYMBOL_INIT(acpi_enable_subsystem)
/*******************************************************************************
*
* FUNCTION: acpi_initialize_objects
*
* PARAMETERS: flags - Init/enable Options
*
* RETURN: Status
*
* DESCRIPTION: Completes namespace initialization by initializing device
* objects and executing AML code for Regions, buffers, etc.
*
******************************************************************************/
acpi_status ACPI_INIT_FUNCTION acpi_initialize_objects(u32 flags)
{
acpi_status status = AE_OK;
ACPI_FUNCTION_TRACE(acpi_initialize_objects);
#ifdef ACPI_EXEC_APP
/*
* This call implements the "initialization file" option for acpi_exec.
* This is the precise point that we want to perform the overrides.
*/
ae_do_object_overrides();
#endif
/*
* Execute any module-level code that was detected during the table load
* phase. Although illegal since ACPI 2.0, there are many machines that
* contain this type of code. Each block of detected executable AML code
* outside of any control method is wrapped with a temporary control
* method object and placed on a global list. The methods on this list
* are executed below.
*
* This case executes the module-level code for all tables only after
* all of the tables have been loaded. It is a legacy option and is
* not compatible with other ACPI implementations. See acpi_ns_load_table.
*/
if (!acpi_gbl_parse_table_as_term_list
&& acpi_gbl_group_module_level_code) {
acpi_ns_exec_module_code_list();
/*
* Initialize the objects that remain uninitialized. This
* runs the executable AML that may be part of the
* declaration of these objects:
* operation_regions, buffer_fields, Buffers, and Packages.
*/
if (!(flags & ACPI_NO_OBJECT_INIT)) {
status = acpi_ns_initialize_objects();
if (ACPI_FAILURE(status)) {
return_ACPI_STATUS(status);
}
}
}
/*
* Initialize all device/region objects in the namespace. This runs
* the device _STA and _INI methods and region _REG methods.
*/
if (!(flags & (ACPI_NO_DEVICE_INIT | ACPI_NO_ADDRESS_SPACE_INIT))) {
status = acpi_ns_initialize_devices(flags);
if (ACPI_FAILURE(status)) {
return_ACPI_STATUS(status);
}
}
/*
* Empty the caches (delete the cached objects) on the assumption that
* the table load filled them up more than they will be at runtime --
* thus wasting non-paged memory.
*/
status = acpi_purge_cached_objects();
acpi_gbl_startup_flags |= ACPI_INITIALIZED_OK;
return_ACPI_STATUS(status);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Robert Moore | 91 | 73.39% | 1 | 14.29% |
| Lv Zheng | 33 | 26.61% | 6 | 85.71% |
| Total | 124 | 100.00% | 7 | 100.00% |
ACPI_EXPORT_SYMBOL_INIT(acpi_initialize_objects)
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Robert Moore | 523 | 90.96% | 5 | 35.71% |
| Lv Zheng | 52 | 9.04% | 9 | 64.29% |
| Total | 575 | 100.00% | 14 | 100.00% |
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.