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329 lines
9.8 KiB
C
329 lines
9.8 KiB
C
/******************************************************************************
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*
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* Module Name: utxfinit - External interfaces for ACPICA initialization
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*
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*****************************************************************************/
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/*
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* Copyright (C) 2000 - 2018, 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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#define EXPORT_ACPI_INTERFACES
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#include "acpi.h"
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#include "accommon.h"
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#include "acevents.h"
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#include "acnamesp.h"
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#include "acdebug.h"
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#include "actables.h"
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#define _COMPONENT ACPI_UTILITIES
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ACPI_MODULE_NAME ("utxfinit")
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/* For AcpiExec only */
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void
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AeDoObjectOverrides (
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void);
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/*******************************************************************************
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*
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* FUNCTION: AcpiInitializeSubsystem
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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: Initializes all global variables. This is the first function
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* called, so any early initialization belongs here.
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*
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******************************************************************************/
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ACPI_STATUS ACPI_INIT_FUNCTION
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AcpiInitializeSubsystem (
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void)
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{
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ACPI_STATUS Status;
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ACPI_FUNCTION_TRACE (AcpiInitializeSubsystem);
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AcpiGbl_StartupFlags = ACPI_SUBSYSTEM_INITIALIZE;
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ACPI_DEBUG_EXEC (AcpiUtInitStackPtrTrace ());
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/* Initialize the OS-Dependent layer */
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Status = AcpiOsInitialize ();
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if (ACPI_FAILURE (Status))
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{
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ACPI_EXCEPTION ((AE_INFO, Status, "During OSL initialization"));
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return_ACPI_STATUS (Status);
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}
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/* Initialize all globals used by the subsystem */
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Status = AcpiUtInitGlobals ();
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if (ACPI_FAILURE (Status))
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{
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ACPI_EXCEPTION ((AE_INFO, Status, "During initialization of globals"));
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return_ACPI_STATUS (Status);
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}
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/* Create the default mutex objects */
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Status = AcpiUtMutexInitialize ();
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if (ACPI_FAILURE (Status))
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{
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ACPI_EXCEPTION ((AE_INFO, Status, "During Global Mutex creation"));
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return_ACPI_STATUS (Status);
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}
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/*
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* Initialize the namespace manager and
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* the root of the namespace tree
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*/
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Status = AcpiNsRootInitialize ();
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if (ACPI_FAILURE (Status))
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{
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ACPI_EXCEPTION ((AE_INFO, Status, "During Namespace initialization"));
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return_ACPI_STATUS (Status);
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}
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/* Initialize the global OSI interfaces list with the static names */
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Status = AcpiUtInitializeInterfaces ();
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if (ACPI_FAILURE (Status))
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{
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ACPI_EXCEPTION ((AE_INFO, Status, "During OSI interfaces initialization"));
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return_ACPI_STATUS (Status);
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}
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return_ACPI_STATUS (AE_OK);
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}
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ACPI_EXPORT_SYMBOL_INIT (AcpiInitializeSubsystem)
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/*******************************************************************************
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*
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* FUNCTION: AcpiEnableSubsystem
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*
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* PARAMETERS: Flags - Init/enable Options
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*
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* RETURN: Status
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*
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* DESCRIPTION: Completes the subsystem initialization including hardware.
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* Puts system into ACPI mode if it isn't already.
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*
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******************************************************************************/
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ACPI_STATUS ACPI_INIT_FUNCTION
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AcpiEnableSubsystem (
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UINT32 Flags)
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{
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ACPI_STATUS Status = AE_OK;
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ACPI_FUNCTION_TRACE (AcpiEnableSubsystem);
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/*
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* The early initialization phase is complete. The namespace is loaded,
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* and we can now support address spaces other than Memory, I/O, and
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* PCI_Config.
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*/
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AcpiGbl_EarlyInitialization = FALSE;
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#if (!ACPI_REDUCED_HARDWARE)
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/* Enable ACPI mode */
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if (!(Flags & ACPI_NO_ACPI_ENABLE))
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{
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ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, "[Init] Going into ACPI mode\n"));
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AcpiGbl_OriginalMode = AcpiHwGetMode();
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Status = AcpiEnable ();
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if (ACPI_FAILURE (Status))
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{
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ACPI_WARNING ((AE_INFO, "AcpiEnable failed"));
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return_ACPI_STATUS (Status);
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}
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}
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/*
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* Obtain a permanent mapping for the FACS. This is required for the
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* Global Lock and the Firmware Waking Vector
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*/
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if (!(Flags & ACPI_NO_FACS_INIT))
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{
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Status = AcpiTbInitializeFacs ();
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if (ACPI_FAILURE (Status))
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{
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ACPI_WARNING ((AE_INFO, "Could not map the FACS table"));
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return_ACPI_STATUS (Status);
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}
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}
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/*
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* Initialize ACPI Event handling (Fixed and General Purpose)
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*
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* Note1: We must have the hardware and events initialized before we can
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* execute any control methods safely. Any control method can require
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* ACPI hardware support, so the hardware must be fully initialized before
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* any method execution!
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*
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* Note2: Fixed events are initialized and enabled here. GPEs are
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* initialized, but cannot be enabled until after the hardware is
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* completely initialized (SCI and GlobalLock activated) and the various
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* initialization control methods are run (_REG, _STA, _INI) on the
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* entire namespace.
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*/
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if (!(Flags & ACPI_NO_EVENT_INIT))
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{
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ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
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"[Init] Initializing ACPI events\n"));
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Status = AcpiEvInitializeEvents ();
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if (ACPI_FAILURE (Status))
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{
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return_ACPI_STATUS (Status);
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}
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}
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/*
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* Install the SCI handler and Global Lock handler. This completes the
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* hardware initialization.
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*/
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if (!(Flags & ACPI_NO_HANDLER_INIT))
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{
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ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
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"[Init] Installing SCI/GL handlers\n"));
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Status = AcpiEvInstallXruptHandlers ();
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if (ACPI_FAILURE (Status))
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{
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return_ACPI_STATUS (Status);
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}
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}
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#endif /* !ACPI_REDUCED_HARDWARE */
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return_ACPI_STATUS (Status);
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}
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ACPI_EXPORT_SYMBOL_INIT (AcpiEnableSubsystem)
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/*******************************************************************************
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*
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* FUNCTION: AcpiInitializeObjects
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*
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* PARAMETERS: Flags - Init/enable Options
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*
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* RETURN: Status
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*
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* DESCRIPTION: Completes namespace initialization by initializing device
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* objects and executing AML code for Regions, buffers, etc.
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*
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******************************************************************************/
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ACPI_STATUS ACPI_INIT_FUNCTION
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AcpiInitializeObjects (
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UINT32 Flags)
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{
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ACPI_STATUS Status = AE_OK;
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ACPI_FUNCTION_TRACE (AcpiInitializeObjects);
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/*
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* This case handles the legacy option that groups all module-level
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* code blocks together and defers execution until all of the tables
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* are loaded. Execute all of these blocks at this time.
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* Execute any module-level code that was detected during the table
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* load phase.
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*
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* Note: this option is deprecated and will be eliminated in the
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* future. Use of this option can cause problems with AML code that
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* depends upon in-order immediate execution of module-level code.
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*/
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AcpiNsExecModuleCodeList ();
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/*
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* Initialize the objects that remain uninitialized. This
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* runs the executable AML that may be part of the
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* declaration of these objects:
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* OperationRegions, BufferFields, Buffers, and Packages.
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*/
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if (!(Flags & ACPI_NO_OBJECT_INIT))
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{
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Status = AcpiNsInitializeObjects ();
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if (ACPI_FAILURE (Status))
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{
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return_ACPI_STATUS (Status);
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}
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}
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/*
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* Initialize all device/region objects in the namespace. This runs
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* the device _STA and _INI methods and region _REG methods.
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*/
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if (!(Flags & (ACPI_NO_DEVICE_INIT | ACPI_NO_ADDRESS_SPACE_INIT)))
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{
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Status = AcpiNsInitializeDevices (Flags);
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if (ACPI_FAILURE (Status))
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{
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return_ACPI_STATUS (Status);
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}
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}
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/*
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* Empty the caches (delete the cached objects) on the assumption that
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* the table load filled them up more than they will be at runtime --
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* thus wasting non-paged memory.
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*/
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Status = AcpiPurgeCachedObjects ();
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AcpiGbl_StartupFlags |= ACPI_INITIALIZED_OK;
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return_ACPI_STATUS (Status);
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}
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ACPI_EXPORT_SYMBOL_INIT (AcpiInitializeObjects)
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