Import ACPICA 20120816.vendor/acpica/20120816

1 files changed, 358 insertions, 0 deletions

diff --git a/source/components/utilities/utxfinit.c b/source/components/utilities/utxfinit.c
new file mode 100644
index 000000000000..733aa3b9bbfc
--- /dev/null
+++ b/source/components/utilities/utxfinit.c
@@ -0,0 +1,358 @@
+/******************************************************************************
+ *
+ * Module Name: utxfinit - External interfaces for ACPICA initialization
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2012, 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 __UTXFINIT_C__
+
+#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")
+
+
+/*******************************************************************************
+ *
+ * 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 configured, initialize the AML debugger */
+
+    ACPI_DEBUGGER_EXEC (Status = AcpiDbInitialize ());
+    return_ACPI_STATUS (Status);
+}
+
+ACPI_EXPORT_SYMBOL (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);
+
+
+#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
+     */
+    Status = AcpiTbInitializeFacs ();
+    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 OpRegion handlers. These are installed unless
+     * other handlers have already been installed via the
+     * InstallAddressSpaceHandler interface.
+     */
+    if (!(Flags & ACPI_NO_ADDRESS_SPACE_INIT))
+    {
+        ACPI_DEBUG_PRINT ((ACPI_DB_EXEC,
+            "[Init] Installing default address space handlers\n"));
+
+        Status = AcpiEvInstallRegionHandlers ();
+        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 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 (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);
+        }
+    }
+
+    /*
+     * 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.
+     */
+    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 (AcpiInitializeObjects)