330 lines
9.9 KiB
C
330 lines
9.9 KiB
C
/******************************************************************************
|
|
*
|
|
* Module Name: utxfinit - External interfaces for ACPICA initialization
|
|
*
|
|
*****************************************************************************/
|
|
|
|
/*
|
|
* Copyright (C) 2000 - 2014, 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")
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* 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 __init 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);
|
|
}
|
|
|
|
/* If configured, initialize the AML debugger */
|
|
|
|
#ifdef ACPI_DEBUGGER
|
|
status = acpi_db_initialize();
|
|
if (ACPI_FAILURE(status)) {
|
|
ACPI_EXCEPTION((AE_INFO, status,
|
|
"During Debugger initialization"));
|
|
return_ACPI_STATUS(status);
|
|
}
|
|
#endif
|
|
|
|
return_ACPI_STATUS(AE_OK);
|
|
}
|
|
|
|
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 __init acpi_enable_subsystem(u32 flags)
|
|
{
|
|
acpi_status status = AE_OK;
|
|
|
|
ACPI_FUNCTION_TRACE(acpi_enable_subsystem);
|
|
|
|
#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
|
|
*/
|
|
status = acpi_tb_initialize_facs();
|
|
if (ACPI_FAILURE(status)) {
|
|
ACPI_WARNING((AE_INFO, "Could not map the FACS table"));
|
|
return_ACPI_STATUS(status);
|
|
}
|
|
#endif /* !ACPI_REDUCED_HARDWARE */
|
|
|
|
/*
|
|
* Install the default op_region handlers. These are installed unless
|
|
* other handlers have already been installed via the
|
|
* install_address_space_handler interface.
|
|
*/
|
|
if (!(flags & ACPI_NO_ADDRESS_SPACE_INIT)) {
|
|
ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
|
|
"[Init] Installing default address space handlers\n"));
|
|
|
|
status = acpi_ev_install_region_handlers();
|
|
if (ACPI_FAILURE(status)) {
|
|
return_ACPI_STATUS(status);
|
|
}
|
|
}
|
|
#if (!ACPI_REDUCED_HARDWARE)
|
|
/*
|
|
* 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);
|
|
}
|
|
|
|
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 __init acpi_initialize_objects(u32 flags)
|
|
{
|
|
acpi_status status = AE_OK;
|
|
|
|
ACPI_FUNCTION_TRACE(acpi_initialize_objects);
|
|
|
|
/*
|
|
* Run all _REG methods
|
|
*
|
|
* Note: Any objects accessed by the _REG methods will be automatically
|
|
* initialized, even if they contain executable AML (see the call to
|
|
* acpi_ns_initialize_objects below).
|
|
*/
|
|
if (!(flags & ACPI_NO_ADDRESS_SPACE_INIT)) {
|
|
ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
|
|
"[Init] Executing _REG OpRegion methods\n"));
|
|
|
|
status = acpi_ev_initialize_op_regions();
|
|
if (ACPI_FAILURE(status)) {
|
|
return_ACPI_STATUS(status);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* 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.
|
|
*/
|
|
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)) {
|
|
ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
|
|
"[Init] Completing Initialization of ACPI Objects\n"));
|
|
|
|
status = acpi_ns_initialize_objects();
|
|
if (ACPI_FAILURE(status)) {
|
|
return_ACPI_STATUS(status);
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Initialize all device objects in the namespace. This runs the device
|
|
* _STA and _INI methods.
|
|
*/
|
|
if (!(flags & ACPI_NO_DEVICE_INIT)) {
|
|
ACPI_DEBUG_PRINT((ACPI_DB_EXEC,
|
|
"[Init] Initializing ACPI Devices\n"));
|
|
|
|
status = acpi_ns_initialize_devices();
|
|
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);
|
|
}
|
|
|
|
ACPI_EXPORT_SYMBOL_INIT(acpi_initialize_objects)
|