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ACPICA: Split ACPICA initialization functions to new file, utxfinit.c
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Split utxface.c to improve modularity and reduce file size.

Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Feng Tang <feng.tang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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Bob Moore authored and Len Brown committed Sep 21, 2012
1 parent 28f538b commit d978348
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Showing 3 changed files with 319 additions and 266 deletions.
1 change: 1 addition & 0 deletions drivers/acpi/acpica/Makefile
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Original file line number Diff line number Diff line change
Expand Up @@ -158,5 +158,6 @@ acpi-y += \
utresrc.o \
utstate.o \
utxface.o \
utxfinit.o \
utxferror.o \
utxfmutex.o
267 changes: 1 addition & 266 deletions drivers/acpi/acpica/utxface.c
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Original file line number Diff line number Diff line change
@@ -1,6 +1,6 @@
/******************************************************************************
*
* Module Name: utxface - External interfaces for "global" ACPI functions
* Module Name: utxface - External interfaces, miscellaneous utility functions
*
*****************************************************************************/

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#define _COMPONENT ACPI_UTILITIES
ACPI_MODULE_NAME("utxface")

#ifndef ACPI_ASL_COMPILER
/*******************************************************************************
*
* 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 */

ACPI_DEBUGGER_EXEC(status = acpi_db_initialize());
return_ACPI_STATUS(status);
}

/*******************************************************************************
*
* 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_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)
*/
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(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_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(acpi_initialize_objects)

#endif
/*******************************************************************************
*
* FUNCTION: acpi_terminate
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