| /****************************************************************************** |
| * |
| * Module Name: utxfinit - External interfaces for ACPICA initialization |
| * |
| *****************************************************************************/ |
| |
| /* |
| * Copyright (C) 2000 - 2016, 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.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 AcpiExec only */ |
| void |
| AeDoObjectOverrides ( |
| void); |
| |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: AcpiInitializeSubsystem |
| * |
| * PARAMETERS: None |
| * |
| * RETURN: Status |
| * |
| * DESCRIPTION: Initializes all global variables. This is the first function |
| * called, so any early initialization belongs here. |
| * |
| ******************************************************************************/ |
| |
| ACPI_STATUS |
| AcpiInitializeSubsystem ( |
| void) |
| { |
| ACPI_STATUS Status; |
| |
| |
| ACPI_FUNCTION_TRACE (AcpiInitializeSubsystem); |
| |
| |
| AcpiGbl_StartupFlags = ACPI_SUBSYSTEM_INITIALIZE; |
| ACPI_DEBUG_EXEC (AcpiUtInitStackPtrTrace ()); |
| |
| /* Initialize the OS-Dependent layer */ |
| |
| Status = AcpiOsInitialize (); |
| if (ACPI_FAILURE (Status)) |
| { |
| ACPI_EXCEPTION ((AE_INFO, Status, "During OSL initialization")); |
| return_ACPI_STATUS (Status); |
| } |
| |
| /* Initialize all globals used by the subsystem */ |
| |
| Status = AcpiUtInitGlobals (); |
| if (ACPI_FAILURE (Status)) |
| { |
| ACPI_EXCEPTION ((AE_INFO, Status, "During initialization of globals")); |
| return_ACPI_STATUS (Status); |
| } |
| |
| /* Create the default mutex objects */ |
| |
| Status = AcpiUtMutexInitialize (); |
| 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 = AcpiNsRootInitialize (); |
| 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 = AcpiUtInitializeInterfaces (); |
| if (ACPI_FAILURE (Status)) |
| { |
| ACPI_EXCEPTION ((AE_INFO, Status, "During OSI interfaces initialization")); |
| return_ACPI_STATUS (Status); |
| } |
| |
| if (!AcpiGbl_OverrideDefaultRegionHandlers) |
| { |
| /* |
| * Install the default operation region handlers. These are the |
| * handlers that are defined by the ACPI specification to be |
| * "always accessible" -- namely, SystemMemory, SystemIO, and |
| * PCI_Config. This also means that no _REG methods need to be |
| * run for these address spaces. We need to have these handlers |
| * installed before any AML code can be executed, especially any |
| * module-level code (11/2015). |
| */ |
| Status = AcpiEvInstallRegionHandlers (); |
| if (ACPI_FAILURE (Status)) |
| { |
| ACPI_EXCEPTION ((AE_INFO, Status, "During Region initialization")); |
| return_ACPI_STATUS (Status); |
| } |
| } |
| |
| return_ACPI_STATUS (AE_OK); |
| } |
| |
| ACPI_EXPORT_SYMBOL_INIT (AcpiInitializeSubsystem) |
| |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: AcpiEnableSubsystem |
| * |
| * 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 |
| AcpiEnableSubsystem ( |
| UINT32 Flags) |
| { |
| ACPI_STATUS Status = AE_OK; |
| |
| |
| ACPI_FUNCTION_TRACE (AcpiEnableSubsystem); |
| |
| |
| /* |
| * 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. |
| */ |
| AcpiGbl_EarlyInitialization = FALSE; |
| |
| if (AcpiGbl_OverrideDefaultRegionHandlers) |
| { |
| /* |
| * Install the default operation region handlers. These are the |
| * handlers that are defined by the ACPI specification to be |
| * "always accessible" -- namely, SystemMemory, SystemIO, and |
| * PCI_Config. This also means that no _REG methods need to be |
| * run for these address spaces. We need to have these handlers |
| * installed before any AML code can be executed, especially any |
| * module-level code (11/2015). |
| */ |
| Status = AcpiEvInstallRegionHandlers (); |
| if (ACPI_FAILURE (Status)) |
| { |
| ACPI_EXCEPTION ((AE_INFO, Status, "During Region initialization")); |
| return_ACPI_STATUS (Status); |
| } |
| } |
| |
| |
| #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")); |
| |
| AcpiGbl_OriginalMode = AcpiHwGetMode(); |
| |
| Status = AcpiEnable (); |
| 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 = AcpiTbInitializeFacs (); |
| 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 GlobalLock 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 = AcpiEvInitializeEvents (); |
| 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 = AcpiEvInstallXruptHandlers (); |
| if (ACPI_FAILURE (Status)) |
| { |
| return_ACPI_STATUS (Status); |
| } |
| } |
| |
| #endif /* !ACPI_REDUCED_HARDWARE */ |
| |
| return_ACPI_STATUS (Status); |
| } |
| |
| ACPI_EXPORT_SYMBOL_INIT (AcpiEnableSubsystem) |
| |
| |
| /******************************************************************************* |
| * |
| * FUNCTION: AcpiInitializeObjects |
| * |
| * 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 |
| AcpiInitializeObjects ( |
| UINT32 Flags) |
| { |
| ACPI_STATUS Status = AE_OK; |
| |
| |
| ACPI_FUNCTION_TRACE (AcpiInitializeObjects); |
| |
| |
| /* |
| * 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 |
| * AcpiNsInitializeObjects below). |
| */ |
| if (!(Flags & ACPI_NO_ADDRESS_SPACE_INIT)) |
| { |
| ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, |
| "[Init] Executing _REG OpRegion methods\n")); |
| |
| Status = AcpiEvInitializeOpRegions (); |
| if (ACPI_FAILURE (Status)) |
| { |
| return_ACPI_STATUS (Status); |
| } |
| } |
| |
| #ifdef ACPI_EXEC_APP |
| /* |
| * This call implements the "initialization file" option for AcpiExec. |
| * This is the precise point that we want to perform the overrides. |
| */ |
| AeDoObjectOverrides (); |
| #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 AcpiNsLoadTable. |
| */ |
| if (AcpiGbl_GroupModuleLevelCode) |
| { |
| AcpiNsExecModuleCodeList (); |
| } |
| |
| /* |
| * Initialize the objects that remain uninitialized. This runs the |
| * executable AML that may be part of the declaration of these objects: |
| * OperationRegions, BufferFields, Buffers, and Packages. |
| */ |
| if (!(Flags & ACPI_NO_OBJECT_INIT)) |
| { |
| ACPI_DEBUG_PRINT ((ACPI_DB_EXEC, |
| "[Init] Completing Initialization of ACPI Objects\n")); |
| |
| Status = AcpiNsInitializeObjects (); |
| 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 = AcpiNsInitializeDevices (); |
| 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 = AcpiPurgeCachedObjects (); |
| |
| AcpiGbl_StartupFlags |= ACPI_INITIALIZED_OK; |
| return_ACPI_STATUS (Status); |
| } |
| |
| ACPI_EXPORT_SYMBOL_INIT (AcpiInitializeObjects) |
