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path: root/drivers/acpi/acpica/utinit.c
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Diffstat (limited to 'drivers/acpi/acpica/utinit.c')
-rw-r--r--drivers/acpi/acpica/utinit.c315
1 files changed, 315 insertions, 0 deletions
diff --git a/drivers/acpi/acpica/utinit.c b/drivers/acpi/acpica/utinit.c
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index 000000000..e402e07b4
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+++ b/drivers/acpi/acpica/utinit.c
@@ -0,0 +1,315 @@
+/******************************************************************************
+ *
+ * Module Name: utinit - Common ACPI subsystem initialization
+ *
+ *****************************************************************************/
+
+/*
+ * Copyright (C) 2000 - 2015, 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.
+ */
+
+#include <acpi/acpi.h>
+#include "accommon.h"
+#include "acnamesp.h"
+#include "acevents.h"
+#include "actables.h"
+
+#define _COMPONENT ACPI_UTILITIES
+ACPI_MODULE_NAME("utinit")
+
+/* 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_trace_dbg_level = 0;
+ acpi_gbl_trace_dbg_layer = 0;
+ acpi_gbl_debugger_configuration = DEBUGGER_THREADING;
+ acpi_gbl_osi_mutex = NULL;
+ acpi_gbl_reg_methods_executed = FALSE;
+
+ /* Hardware oriented */
+
+ acpi_gbl_events_initialized = FALSE;
+ acpi_gbl_system_awake_and_running = TRUE;
+
+ /* Namespace */
+
+ acpi_gbl_module_code_list = NULL;
+ 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
+
+ ACPI_DEBUGGER_EXEC(acpi_gbl_db_terminate_threads = FALSE);
+
+ 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_FUNCTION_TRACE(ut_subsystem_shutdown);
+
+#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;
+}