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288 lines
6.8 KiB
288 lines
6.8 KiB
// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 |
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/****************************************************************************** |
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* |
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* Module Name: utinit - Common ACPI subsystem initialization |
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* |
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* Copyright (C) 2000 - 2021, Intel Corp. |
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* |
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*****************************************************************************/ |
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#include <acpi/acpi.h> |
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#include "accommon.h" |
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#include "acnamesp.h" |
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#include "acevents.h" |
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#include "actables.h" |
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#define _COMPONENT ACPI_UTILITIES |
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ACPI_MODULE_NAME("utinit") |
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/* Local prototypes */ |
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static void acpi_ut_terminate(void); |
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#if (!ACPI_REDUCED_HARDWARE) |
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static void acpi_ut_free_gpe_lists(void); |
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#else |
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#define acpi_ut_free_gpe_lists() |
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#endif /* !ACPI_REDUCED_HARDWARE */ |
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#if (!ACPI_REDUCED_HARDWARE) |
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/****************************************************************************** |
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* |
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* FUNCTION: acpi_ut_free_gpe_lists |
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* |
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* PARAMETERS: none |
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* |
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* RETURN: none |
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* |
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* DESCRIPTION: Free global GPE lists |
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* |
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******************************************************************************/ |
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static void acpi_ut_free_gpe_lists(void) |
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{ |
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struct acpi_gpe_block_info *gpe_block; |
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struct acpi_gpe_block_info *next_gpe_block; |
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struct acpi_gpe_xrupt_info *gpe_xrupt_info; |
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struct acpi_gpe_xrupt_info *next_gpe_xrupt_info; |
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/* Free global GPE blocks and related info structures */ |
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gpe_xrupt_info = acpi_gbl_gpe_xrupt_list_head; |
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while (gpe_xrupt_info) { |
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gpe_block = gpe_xrupt_info->gpe_block_list_head; |
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while (gpe_block) { |
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next_gpe_block = gpe_block->next; |
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ACPI_FREE(gpe_block->event_info); |
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ACPI_FREE(gpe_block->register_info); |
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ACPI_FREE(gpe_block); |
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gpe_block = next_gpe_block; |
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} |
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next_gpe_xrupt_info = gpe_xrupt_info->next; |
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ACPI_FREE(gpe_xrupt_info); |
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gpe_xrupt_info = next_gpe_xrupt_info; |
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} |
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} |
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#endif /* !ACPI_REDUCED_HARDWARE */ |
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/******************************************************************************* |
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* |
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* FUNCTION: acpi_ut_init_globals |
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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: Initialize ACPICA globals. All globals that require specific |
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* initialization should be initialized here. This allows for |
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* a warm restart. |
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* |
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******************************************************************************/ |
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acpi_status acpi_ut_init_globals(void) |
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{ |
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acpi_status status; |
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u32 i; |
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ACPI_FUNCTION_TRACE(ut_init_globals); |
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/* Create all memory caches */ |
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status = acpi_ut_create_caches(); |
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if (ACPI_FAILURE(status)) { |
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return_ACPI_STATUS(status); |
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} |
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/* Address Range lists */ |
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for (i = 0; i < ACPI_ADDRESS_RANGE_MAX; i++) { |
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acpi_gbl_address_range_list[i] = NULL; |
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} |
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/* Mutex locked flags */ |
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for (i = 0; i < ACPI_NUM_MUTEX; i++) { |
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acpi_gbl_mutex_info[i].mutex = NULL; |
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acpi_gbl_mutex_info[i].thread_id = ACPI_MUTEX_NOT_ACQUIRED; |
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acpi_gbl_mutex_info[i].use_count = 0; |
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} |
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for (i = 0; i < ACPI_NUM_OWNERID_MASKS; i++) { |
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acpi_gbl_owner_id_mask[i] = 0; |
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} |
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/* Last owner_ID is never valid */ |
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acpi_gbl_owner_id_mask[ACPI_NUM_OWNERID_MASKS - 1] = 0x80000000; |
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/* Event counters */ |
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acpi_method_count = 0; |
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acpi_sci_count = 0; |
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acpi_gpe_count = 0; |
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for (i = 0; i < ACPI_NUM_FIXED_EVENTS; i++) { |
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acpi_fixed_event_count[i] = 0; |
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} |
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#if (!ACPI_REDUCED_HARDWARE) |
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/* GPE/SCI support */ |
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acpi_gbl_all_gpes_initialized = FALSE; |
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acpi_gbl_gpe_xrupt_list_head = NULL; |
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acpi_gbl_gpe_fadt_blocks[0] = NULL; |
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acpi_gbl_gpe_fadt_blocks[1] = NULL; |
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acpi_current_gpe_count = 0; |
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acpi_gbl_global_event_handler = NULL; |
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acpi_gbl_sci_handler_list = NULL; |
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#endif /* !ACPI_REDUCED_HARDWARE */ |
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/* Global handlers */ |
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acpi_gbl_global_notify[0].handler = NULL; |
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acpi_gbl_global_notify[1].handler = NULL; |
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acpi_gbl_exception_handler = NULL; |
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acpi_gbl_init_handler = NULL; |
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acpi_gbl_table_handler = NULL; |
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acpi_gbl_interface_handler = NULL; |
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/* Global Lock support */ |
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acpi_gbl_global_lock_semaphore = NULL; |
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acpi_gbl_global_lock_mutex = NULL; |
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acpi_gbl_global_lock_acquired = FALSE; |
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acpi_gbl_global_lock_handle = 0; |
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acpi_gbl_global_lock_present = FALSE; |
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/* Miscellaneous variables */ |
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acpi_gbl_DSDT = NULL; |
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acpi_gbl_cm_single_step = FALSE; |
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acpi_gbl_shutdown = FALSE; |
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acpi_gbl_ns_lookup_count = 0; |
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acpi_gbl_ps_find_count = 0; |
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acpi_gbl_acpi_hardware_present = TRUE; |
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acpi_gbl_last_owner_id_index = 0; |
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acpi_gbl_next_owner_id_offset = 0; |
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acpi_gbl_debugger_configuration = DEBUGGER_THREADING; |
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acpi_gbl_osi_mutex = NULL; |
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/* Hardware oriented */ |
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acpi_gbl_events_initialized = FALSE; |
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acpi_gbl_system_awake_and_running = TRUE; |
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/* Namespace */ |
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acpi_gbl_root_node = NULL; |
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acpi_gbl_root_node_struct.name.integer = ACPI_ROOT_NAME; |
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acpi_gbl_root_node_struct.descriptor_type = ACPI_DESC_TYPE_NAMED; |
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acpi_gbl_root_node_struct.type = ACPI_TYPE_DEVICE; |
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acpi_gbl_root_node_struct.parent = NULL; |
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acpi_gbl_root_node_struct.child = NULL; |
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acpi_gbl_root_node_struct.peer = NULL; |
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acpi_gbl_root_node_struct.object = NULL; |
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#ifdef ACPI_DISASSEMBLER |
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acpi_gbl_external_list = NULL; |
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acpi_gbl_num_external_methods = 0; |
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acpi_gbl_resolved_external_methods = 0; |
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#endif |
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#ifdef ACPI_DEBUG_OUTPUT |
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acpi_gbl_lowest_stack_pointer = ACPI_CAST_PTR(acpi_size, ACPI_SIZE_MAX); |
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#endif |
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#ifdef ACPI_DBG_TRACK_ALLOCATIONS |
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acpi_gbl_display_final_mem_stats = FALSE; |
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acpi_gbl_disable_mem_tracking = FALSE; |
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#endif |
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return_ACPI_STATUS(AE_OK); |
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} |
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/****************************************************************************** |
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* |
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* FUNCTION: acpi_ut_terminate |
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* |
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* PARAMETERS: none |
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* |
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* RETURN: none |
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* |
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* DESCRIPTION: Free global memory |
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* |
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******************************************************************************/ |
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static void acpi_ut_terminate(void) |
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{ |
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ACPI_FUNCTION_TRACE(ut_terminate); |
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acpi_ut_free_gpe_lists(); |
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acpi_ut_delete_address_lists(); |
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return_VOID; |
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} |
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/******************************************************************************* |
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* |
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* FUNCTION: acpi_ut_subsystem_shutdown |
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* PARAMETERS: None |
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* |
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* RETURN: None |
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* |
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* DESCRIPTION: Shutdown the various components. Do not delete the mutex |
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* objects here, because the AML debugger may be still running. |
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* |
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******************************************************************************/ |
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void acpi_ut_subsystem_shutdown(void) |
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{ |
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ACPI_FUNCTION_TRACE(ut_subsystem_shutdown); |
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/* Just exit if subsystem is already shutdown */ |
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if (acpi_gbl_shutdown) { |
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ACPI_ERROR((AE_INFO, "ACPI Subsystem is already terminated")); |
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return_VOID; |
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} |
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/* Subsystem appears active, go ahead and shut it down */ |
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acpi_gbl_shutdown = TRUE; |
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acpi_gbl_startup_flags = 0; |
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ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Shutting down ACPI Subsystem\n")); |
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#ifndef ACPI_ASL_COMPILER |
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/* Close the acpi_event Handling */ |
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acpi_ev_terminate(); |
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/* Delete any dynamic _OSI interfaces */ |
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acpi_ut_interface_terminate(); |
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#endif |
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/* Close the Namespace */ |
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acpi_ns_terminate(); |
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/* Delete the ACPI tables */ |
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acpi_tb_terminate(); |
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/* Close the globals */ |
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acpi_ut_terminate(); |
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/* Purge the local caches */ |
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(void)acpi_ut_delete_caches(); |
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return_VOID; |
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}
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