OpenCloudOS-Kernel/drivers/acpi/acpica/utinit.c

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// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
/******************************************************************************
*
* Module Name: utinit - Common ACPI subsystem initialization
*
* Copyright (C) 2000 - 2023, Intel Corp.
*
*****************************************************************************/
#include <acpi/acpi.h>
#include "accommon.h"
#include "acnamesp.h"
#include "acevents.h"
#include "actables.h"
#define _COMPONENT ACPI_UTILITIES
ACPI_MODULE_NAME("utinit")
ACPICA 20050408 from Bob Moore Fixed three cases in the interpreter where an "index" argument to an ASL function was still (internally) 32 bits instead of the required 64 bits. This was the Index argument to the Index, Mid, and Match operators. The "strupr" function is now permanently local (acpi_ut_strupr), since this is not a POSIX-defined function and not present in most kernel-level C libraries. References to the C library strupr function have been removed from the headers. Completed the deployment of static functions/prototypes. All prototypes with the static attribute have been moved from the headers to the owning C file. ACPICA 20050329 from Bob Moore An error is now generated if an attempt is made to create a Buffer Field of length zero (A CreateField with a length operand of zero.) The interpreter now issues a warning whenever executable code at the module level is detected during ACPI table load. This will give some idea of the prevalence of this type of code. Implemented support for references to named objects (other than control methods) within package objects. Enhanced package object output for the debug object. Package objects are now completely dumped, showing all elements. Enhanced miscellaneous object output for the debug object. Any object can now be written to the debug object (for example, a device object can be written, and the type of the object will be displayed.) The "static" qualifier has been added to all local functions across the core subsystem. The number of "long" lines (> 80 chars) within the source has been significantly reduced, by about 1/3. Cleaned up all header files to ensure that all CA/iASL functions are prototyped (even static functions) and the formatting is consistent. Two new header files have been added, acopcode.h and acnames.h. Removed several obsolete functions that were no longer used. Signed-off-by: Len Brown <len.brown@intel.com>
2005-04-19 10:49:35 +08:00
/* Local prototypes */
static void acpi_ut_terminate(void);
#if (!ACPI_REDUCED_HARDWARE)
static void acpi_ut_free_gpe_lists(void);
#else
#define acpi_ut_free_gpe_lists()
#endif /* !ACPI_REDUCED_HARDWARE */
#if (!ACPI_REDUCED_HARDWARE)
/******************************************************************************
*
* FUNCTION: acpi_ut_free_gpe_lists
*
* PARAMETERS: none
*
* RETURN: none
*
* DESCRIPTION: Free global GPE lists
*
******************************************************************************/
static void acpi_ut_free_gpe_lists(void)
{
struct acpi_gpe_block_info *gpe_block;
struct acpi_gpe_block_info *next_gpe_block;
struct acpi_gpe_xrupt_info *gpe_xrupt_info;
struct acpi_gpe_xrupt_info *next_gpe_xrupt_info;
/* Free global GPE blocks and related info structures */
gpe_xrupt_info = acpi_gbl_gpe_xrupt_list_head;
while (gpe_xrupt_info) {
gpe_block = gpe_xrupt_info->gpe_block_list_head;
while (gpe_block) {
next_gpe_block = gpe_block->next;
ACPI_FREE(gpe_block->event_info);
ACPI_FREE(gpe_block->register_info);
ACPI_FREE(gpe_block);
gpe_block = next_gpe_block;
}
next_gpe_xrupt_info = gpe_xrupt_info->next;
ACPI_FREE(gpe_xrupt_info);
gpe_xrupt_info = next_gpe_xrupt_info;
}
}
#endif /* !ACPI_REDUCED_HARDWARE */
/*******************************************************************************
*
* FUNCTION: acpi_ut_init_globals
*
* PARAMETERS: None
*
* RETURN: Status
*
* DESCRIPTION: Initialize ACPICA globals. All globals that require specific
* initialization should be initialized here. This allows for
* a warm restart.
*
******************************************************************************/
acpi_status acpi_ut_init_globals(void)
{
acpi_status status;
u32 i;
ACPI_FUNCTION_TRACE(ut_init_globals);
/* Create all memory caches */
status = acpi_ut_create_caches();
if (ACPI_FAILURE(status)) {
return_ACPI_STATUS(status);
}
/* Address Range lists */
for (i = 0; i < ACPI_ADDRESS_RANGE_MAX; i++) {
acpi_gbl_address_range_list[i] = NULL;
}
/* Mutex locked flags */
for (i = 0; i < ACPI_NUM_MUTEX; i++) {
acpi_gbl_mutex_info[i].mutex = NULL;
acpi_gbl_mutex_info[i].thread_id = ACPI_MUTEX_NOT_ACQUIRED;
acpi_gbl_mutex_info[i].use_count = 0;
}
for (i = 0; i < ACPI_NUM_OWNERID_MASKS; i++) {
acpi_gbl_owner_id_mask[i] = 0;
}
/* Last owner_ID is never valid */
acpi_gbl_owner_id_mask[ACPI_NUM_OWNERID_MASKS - 1] = 0x80000000;
/* Event counters */
acpi_method_count = 0;
acpi_sci_count = 0;
acpi_gpe_count = 0;
for (i = 0; i < ACPI_NUM_FIXED_EVENTS; i++) {
acpi_fixed_event_count[i] = 0;
}
#if (!ACPI_REDUCED_HARDWARE)
/* GPE/SCI support */
acpi_gbl_all_gpes_initialized = FALSE;
acpi_gbl_gpe_xrupt_list_head = NULL;
acpi_gbl_gpe_fadt_blocks[0] = NULL;
acpi_gbl_gpe_fadt_blocks[1] = NULL;
acpi_current_gpe_count = 0;
acpi_gbl_global_event_handler = NULL;
acpi_gbl_sci_handler_list = NULL;
#endif /* !ACPI_REDUCED_HARDWARE */
/* Global handlers */
acpi_gbl_global_notify[0].handler = NULL;
acpi_gbl_global_notify[1].handler = NULL;
acpi_gbl_exception_handler = NULL;
acpi_gbl_init_handler = NULL;
acpi_gbl_table_handler = NULL;
acpi_gbl_interface_handler = NULL;
/* Global Lock support */
acpi_gbl_global_lock_semaphore = NULL;
acpi_gbl_global_lock_mutex = NULL;
acpi_gbl_global_lock_acquired = FALSE;
acpi_gbl_global_lock_handle = 0;
acpi_gbl_global_lock_present = FALSE;
/* Miscellaneous variables */
acpi_gbl_DSDT = NULL;
acpi_gbl_cm_single_step = FALSE;
acpi_gbl_shutdown = FALSE;
acpi_gbl_ns_lookup_count = 0;
acpi_gbl_ps_find_count = 0;
acpi_gbl_acpi_hardware_present = TRUE;
acpi_gbl_last_owner_id_index = 0;
acpi_gbl_next_owner_id_offset = 0;
acpi_gbl_debugger_configuration = DEBUGGER_THREADING;
acpi_gbl_osi_mutex = NULL;
/* Hardware oriented */
acpi_gbl_events_initialized = FALSE;
acpi_gbl_system_awake_and_running = TRUE;
/* Namespace */
acpi_gbl_root_node = NULL;
acpi_gbl_root_node_struct.name.integer = ACPI_ROOT_NAME;
acpi_gbl_root_node_struct.descriptor_type = ACPI_DESC_TYPE_NAMED;
acpi_gbl_root_node_struct.type = ACPI_TYPE_DEVICE;
acpi_gbl_root_node_struct.parent = NULL;
acpi_gbl_root_node_struct.child = NULL;
acpi_gbl_root_node_struct.peer = NULL;
acpi_gbl_root_node_struct.object = NULL;
#ifdef ACPI_DISASSEMBLER
acpi_gbl_external_list = NULL;
acpi_gbl_num_external_methods = 0;
acpi_gbl_resolved_external_methods = 0;
#endif
#ifdef ACPI_DEBUG_OUTPUT
acpi_gbl_lowest_stack_pointer = ACPI_CAST_PTR(acpi_size, ACPI_SIZE_MAX);
#endif
#ifdef ACPI_DBG_TRACK_ALLOCATIONS
acpi_gbl_display_final_mem_stats = FALSE;
acpi_gbl_disable_mem_tracking = FALSE;
#endif
return_ACPI_STATUS(AE_OK);
}
/******************************************************************************
*
* FUNCTION: acpi_ut_terminate
*
* PARAMETERS: none
*
* RETURN: none
*
* DESCRIPTION: Free global memory
*
******************************************************************************/
static void acpi_ut_terminate(void)
{
ACPI_FUNCTION_TRACE(ut_terminate);
acpi_ut_free_gpe_lists();
acpi_ut_delete_address_lists();
return_VOID;
}
/*******************************************************************************
*
* FUNCTION: acpi_ut_subsystem_shutdown
*
* PARAMETERS: None
*
* RETURN: None
*
* DESCRIPTION: Shutdown the various components. Do not delete the mutex
* objects here, because the AML debugger may be still running.
*
******************************************************************************/
void acpi_ut_subsystem_shutdown(void)
{
ACPI: ACPICA 20060421 Removed a device initialization optimization introduced in 20051216 where the _STA method was not run unless an _INI was also present for the same device. This optimization could cause problems because it could allow _INI methods to be run within a not-present device subtree (If a not-present device had no _INI, _STA would not be run, the not-present status would not be discovered, and the children of the device would be incorrectly traversed.) Implemented a new _STA optimization where namespace subtrees that do not contain _INI are identified and ignored during device initialization. Selectively running _STA can significantly improve boot time on large machines (with assistance from Len Brown.) Implemented support for the device initialization case where the returned _STA flags indicate a device not-present but functioning. In this case, _INI is not run, but the device children are examined for presence, as per the ACPI specification. Implemented an additional change to the IndexField support in order to conform to MS behavior. The value written to the Index Register is not simply a byte offset, it is a byte offset in units of the access width of the parent Index Field. (Fiodor Suietov) Defined and deployed a new OSL interface, acpi_os_validate_address(). This interface is called during the creation of all AML operation regions, and allows the host OS to exert control over what addresses it will allow the AML code to access. Operation Regions whose addresses are disallowed will cause a runtime exception when they are actually accessed (will not affect or abort table loading.) Defined and deployed a new OSL interface, acpi_os_validate_interface(). This interface allows the host OS to match the various "optional" interface/behavior strings for the _OSI predefined control method as appropriate (with assistance from Bjorn Helgaas.) Restructured and corrected various problems in the exception handling code paths within DsCallControlMethod and DsTerminateControlMethod in dsmethod (with assistance from Takayoshi Kochi.) Modified the Linux source converter to ignore quoted string literals while converting identifiers from mixed to lower case. This will correct problems with the disassembler and other areas where such strings must not be modified. The ACPI_FUNCTION_* macros no longer require quotes around the function name. This allows the Linux source converter to convert the names, now that the converter ignores quoted strings. Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
2006-04-22 05:15:00 +08:00
ACPI_FUNCTION_TRACE(ut_subsystem_shutdown);
/* Just exit if subsystem is already shutdown */
if (acpi_gbl_shutdown) {
ACPI_ERROR((AE_INFO, "ACPI Subsystem is already terminated"));
return_VOID;
}
/* Subsystem appears active, go ahead and shut it down */
acpi_gbl_shutdown = TRUE;
acpi_gbl_startup_flags = 0;
ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Shutting down ACPI Subsystem\n"));
#ifndef ACPI_ASL_COMPILER
/* Close the acpi_event Handling */
acpi_ev_terminate();
/* Delete any dynamic _OSI interfaces */
acpi_ut_interface_terminate();
#endif
/* Close the Namespace */
acpi_ns_terminate();
/* Delete the ACPI tables */
acpi_tb_terminate();
/* Close the globals */
acpi_ut_terminate();
/* Purge the local caches */
(void)acpi_ut_delete_caches();
return_VOID;
}