mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-12-30 06:25:03 +08:00
3aa0b085f6
This change cleans up the entire global variable mechaninism including the related macros. Also reduces warnings from the "sparse" utility in the Linux environment. Lv Zheng. Signed-off-by: Lv Zheng <lv.zheng@intel.com> Signed-off-by: Bob Moore <robert.moore@intel.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
394 lines
13 KiB
C
394 lines
13 KiB
C
/******************************************************************************
|
|
*
|
|
* Module Name: utglobal - Global variables for the ACPI subsystem
|
|
*
|
|
*****************************************************************************/
|
|
|
|
/*
|
|
* Copyright (C) 2000 - 2014, 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 EXPORT_ACPI_INTERFACES
|
|
#define DEFINE_ACPI_GLOBALS
|
|
|
|
#include <acpi/acpi.h>
|
|
#include "accommon.h"
|
|
|
|
#define _COMPONENT ACPI_UTILITIES
|
|
ACPI_MODULE_NAME("utglobal")
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* Static global variable initialization.
|
|
*
|
|
******************************************************************************/
|
|
/* Debug output control masks */
|
|
u32 acpi_dbg_level = ACPI_DEBUG_DEFAULT;
|
|
|
|
u32 acpi_dbg_layer = 0;
|
|
|
|
/* acpi_gbl_FADT is a local copy of the FADT, converted to a common format. */
|
|
|
|
struct acpi_table_fadt acpi_gbl_FADT;
|
|
u32 acpi_gbl_trace_flags;
|
|
acpi_name acpi_gbl_trace_method_name;
|
|
u8 acpi_gbl_system_awake_and_running;
|
|
u32 acpi_current_gpe_count;
|
|
|
|
/*
|
|
* ACPI 5.0 introduces the concept of a "reduced hardware platform", meaning
|
|
* that the ACPI hardware is no longer required. A flag in the FADT indicates
|
|
* a reduced HW machine, and that flag is duplicated here for convenience.
|
|
*/
|
|
u8 acpi_gbl_reduced_hardware;
|
|
|
|
/* Various state name strings */
|
|
|
|
const char *acpi_gbl_sleep_state_names[ACPI_S_STATE_COUNT] = {
|
|
"\\_S0_",
|
|
"\\_S1_",
|
|
"\\_S2_",
|
|
"\\_S3_",
|
|
"\\_S4_",
|
|
"\\_S5_"
|
|
};
|
|
|
|
const char *acpi_gbl_lowest_dstate_names[ACPI_NUM_sx_w_METHODS] = {
|
|
"_S0W",
|
|
"_S1W",
|
|
"_S2W",
|
|
"_S3W",
|
|
"_S4W"
|
|
};
|
|
|
|
const char *acpi_gbl_highest_dstate_names[ACPI_NUM_sx_d_METHODS] = {
|
|
"_S1D",
|
|
"_S2D",
|
|
"_S3D",
|
|
"_S4D"
|
|
};
|
|
|
|
/*******************************************************************************
|
|
*
|
|
* Namespace globals
|
|
*
|
|
******************************************************************************/
|
|
/*
|
|
* Predefined ACPI Names (Built-in to the Interpreter)
|
|
*
|
|
* NOTES:
|
|
* 1) _SB_ is defined to be a device to allow \_SB_._INI to be run
|
|
* during the initialization sequence.
|
|
* 2) _TZ_ is defined to be a thermal zone in order to allow ASL code to
|
|
* perform a Notify() operation on it. 09/2010: Changed to type Device.
|
|
* This still allows notifies, but does not confuse host code that
|
|
* searches for valid thermal_zone objects.
|
|
*/
|
|
const struct acpi_predefined_names acpi_gbl_pre_defined_names[] = {
|
|
{"_GPE", ACPI_TYPE_LOCAL_SCOPE, NULL},
|
|
{"_PR_", ACPI_TYPE_LOCAL_SCOPE, NULL},
|
|
{"_SB_", ACPI_TYPE_DEVICE, NULL},
|
|
{"_SI_", ACPI_TYPE_LOCAL_SCOPE, NULL},
|
|
{"_TZ_", ACPI_TYPE_DEVICE, NULL},
|
|
{"_REV", ACPI_TYPE_INTEGER, (char *)ACPI_CA_SUPPORT_LEVEL},
|
|
{"_OS_", ACPI_TYPE_STRING, ACPI_OS_NAME},
|
|
{"_GL_", ACPI_TYPE_MUTEX, (char *)1},
|
|
|
|
#if !defined (ACPI_NO_METHOD_EXECUTION) || defined (ACPI_CONSTANT_EVAL_ONLY)
|
|
{"_OSI", ACPI_TYPE_METHOD, (char *)1},
|
|
#endif
|
|
|
|
/* Table terminator */
|
|
|
|
{NULL, ACPI_TYPE_ANY, NULL}
|
|
};
|
|
|
|
#if (!ACPI_REDUCED_HARDWARE)
|
|
/******************************************************************************
|
|
*
|
|
* Event and Hardware globals
|
|
*
|
|
******************************************************************************/
|
|
|
|
struct acpi_bit_register_info acpi_gbl_bit_register_info[ACPI_NUM_BITREG] = {
|
|
/* Name Parent Register Register Bit Position Register Bit Mask */
|
|
|
|
/* ACPI_BITREG_TIMER_STATUS */ {ACPI_REGISTER_PM1_STATUS,
|
|
ACPI_BITPOSITION_TIMER_STATUS,
|
|
ACPI_BITMASK_TIMER_STATUS},
|
|
/* ACPI_BITREG_BUS_MASTER_STATUS */ {ACPI_REGISTER_PM1_STATUS,
|
|
ACPI_BITPOSITION_BUS_MASTER_STATUS,
|
|
ACPI_BITMASK_BUS_MASTER_STATUS},
|
|
/* ACPI_BITREG_GLOBAL_LOCK_STATUS */ {ACPI_REGISTER_PM1_STATUS,
|
|
ACPI_BITPOSITION_GLOBAL_LOCK_STATUS,
|
|
ACPI_BITMASK_GLOBAL_LOCK_STATUS},
|
|
/* ACPI_BITREG_POWER_BUTTON_STATUS */ {ACPI_REGISTER_PM1_STATUS,
|
|
ACPI_BITPOSITION_POWER_BUTTON_STATUS,
|
|
ACPI_BITMASK_POWER_BUTTON_STATUS},
|
|
/* ACPI_BITREG_SLEEP_BUTTON_STATUS */ {ACPI_REGISTER_PM1_STATUS,
|
|
ACPI_BITPOSITION_SLEEP_BUTTON_STATUS,
|
|
ACPI_BITMASK_SLEEP_BUTTON_STATUS},
|
|
/* ACPI_BITREG_RT_CLOCK_STATUS */ {ACPI_REGISTER_PM1_STATUS,
|
|
ACPI_BITPOSITION_RT_CLOCK_STATUS,
|
|
ACPI_BITMASK_RT_CLOCK_STATUS},
|
|
/* ACPI_BITREG_WAKE_STATUS */ {ACPI_REGISTER_PM1_STATUS,
|
|
ACPI_BITPOSITION_WAKE_STATUS,
|
|
ACPI_BITMASK_WAKE_STATUS},
|
|
/* ACPI_BITREG_PCIEXP_WAKE_STATUS */ {ACPI_REGISTER_PM1_STATUS,
|
|
ACPI_BITPOSITION_PCIEXP_WAKE_STATUS,
|
|
ACPI_BITMASK_PCIEXP_WAKE_STATUS},
|
|
|
|
/* ACPI_BITREG_TIMER_ENABLE */ {ACPI_REGISTER_PM1_ENABLE,
|
|
ACPI_BITPOSITION_TIMER_ENABLE,
|
|
ACPI_BITMASK_TIMER_ENABLE},
|
|
/* ACPI_BITREG_GLOBAL_LOCK_ENABLE */ {ACPI_REGISTER_PM1_ENABLE,
|
|
ACPI_BITPOSITION_GLOBAL_LOCK_ENABLE,
|
|
ACPI_BITMASK_GLOBAL_LOCK_ENABLE},
|
|
/* ACPI_BITREG_POWER_BUTTON_ENABLE */ {ACPI_REGISTER_PM1_ENABLE,
|
|
ACPI_BITPOSITION_POWER_BUTTON_ENABLE,
|
|
ACPI_BITMASK_POWER_BUTTON_ENABLE},
|
|
/* ACPI_BITREG_SLEEP_BUTTON_ENABLE */ {ACPI_REGISTER_PM1_ENABLE,
|
|
ACPI_BITPOSITION_SLEEP_BUTTON_ENABLE,
|
|
ACPI_BITMASK_SLEEP_BUTTON_ENABLE},
|
|
/* ACPI_BITREG_RT_CLOCK_ENABLE */ {ACPI_REGISTER_PM1_ENABLE,
|
|
ACPI_BITPOSITION_RT_CLOCK_ENABLE,
|
|
ACPI_BITMASK_RT_CLOCK_ENABLE},
|
|
/* ACPI_BITREG_PCIEXP_WAKE_DISABLE */ {ACPI_REGISTER_PM1_ENABLE,
|
|
ACPI_BITPOSITION_PCIEXP_WAKE_DISABLE,
|
|
ACPI_BITMASK_PCIEXP_WAKE_DISABLE},
|
|
|
|
/* ACPI_BITREG_SCI_ENABLE */ {ACPI_REGISTER_PM1_CONTROL,
|
|
ACPI_BITPOSITION_SCI_ENABLE,
|
|
ACPI_BITMASK_SCI_ENABLE},
|
|
/* ACPI_BITREG_BUS_MASTER_RLD */ {ACPI_REGISTER_PM1_CONTROL,
|
|
ACPI_BITPOSITION_BUS_MASTER_RLD,
|
|
ACPI_BITMASK_BUS_MASTER_RLD},
|
|
/* ACPI_BITREG_GLOBAL_LOCK_RELEASE */ {ACPI_REGISTER_PM1_CONTROL,
|
|
ACPI_BITPOSITION_GLOBAL_LOCK_RELEASE,
|
|
ACPI_BITMASK_GLOBAL_LOCK_RELEASE},
|
|
/* ACPI_BITREG_SLEEP_TYPE */ {ACPI_REGISTER_PM1_CONTROL,
|
|
ACPI_BITPOSITION_SLEEP_TYPE,
|
|
ACPI_BITMASK_SLEEP_TYPE},
|
|
/* ACPI_BITREG_SLEEP_ENABLE */ {ACPI_REGISTER_PM1_CONTROL,
|
|
ACPI_BITPOSITION_SLEEP_ENABLE,
|
|
ACPI_BITMASK_SLEEP_ENABLE},
|
|
|
|
/* ACPI_BITREG_ARB_DIS */ {ACPI_REGISTER_PM2_CONTROL,
|
|
ACPI_BITPOSITION_ARB_DISABLE,
|
|
ACPI_BITMASK_ARB_DISABLE}
|
|
};
|
|
|
|
struct acpi_fixed_event_info acpi_gbl_fixed_event_info[ACPI_NUM_FIXED_EVENTS] = {
|
|
/* ACPI_EVENT_PMTIMER */ {ACPI_BITREG_TIMER_STATUS,
|
|
ACPI_BITREG_TIMER_ENABLE,
|
|
ACPI_BITMASK_TIMER_STATUS,
|
|
ACPI_BITMASK_TIMER_ENABLE},
|
|
/* ACPI_EVENT_GLOBAL */ {ACPI_BITREG_GLOBAL_LOCK_STATUS,
|
|
ACPI_BITREG_GLOBAL_LOCK_ENABLE,
|
|
ACPI_BITMASK_GLOBAL_LOCK_STATUS,
|
|
ACPI_BITMASK_GLOBAL_LOCK_ENABLE},
|
|
/* ACPI_EVENT_POWER_BUTTON */ {ACPI_BITREG_POWER_BUTTON_STATUS,
|
|
ACPI_BITREG_POWER_BUTTON_ENABLE,
|
|
ACPI_BITMASK_POWER_BUTTON_STATUS,
|
|
ACPI_BITMASK_POWER_BUTTON_ENABLE},
|
|
/* ACPI_EVENT_SLEEP_BUTTON */ {ACPI_BITREG_SLEEP_BUTTON_STATUS,
|
|
ACPI_BITREG_SLEEP_BUTTON_ENABLE,
|
|
ACPI_BITMASK_SLEEP_BUTTON_STATUS,
|
|
ACPI_BITMASK_SLEEP_BUTTON_ENABLE},
|
|
/* ACPI_EVENT_RTC */ {ACPI_BITREG_RT_CLOCK_STATUS,
|
|
ACPI_BITREG_RT_CLOCK_ENABLE,
|
|
ACPI_BITMASK_RT_CLOCK_STATUS,
|
|
ACPI_BITMASK_RT_CLOCK_ENABLE},
|
|
};
|
|
#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_method_name = 0;
|
|
acpi_gbl_trace_dbg_level = 0;
|
|
acpi_gbl_trace_dbg_layer = 0;
|
|
acpi_gbl_debugger_configuration = DEBUGGER_THREADING;
|
|
acpi_gbl_db_output_flags = ACPI_DB_CONSOLE_OUTPUT;
|
|
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
|
|
|
|
#ifdef ACPI_DEBUGGER
|
|
acpi_gbl_db_terminate_threads = FALSE;
|
|
#endif
|
|
|
|
return_ACPI_STATUS(AE_OK);
|
|
}
|
|
|
|
/* Public globals */
|
|
|
|
ACPI_EXPORT_SYMBOL(acpi_gbl_FADT)
|
|
ACPI_EXPORT_SYMBOL(acpi_dbg_level)
|
|
ACPI_EXPORT_SYMBOL(acpi_dbg_layer)
|
|
ACPI_EXPORT_SYMBOL(acpi_gpe_count)
|
|
ACPI_EXPORT_SYMBOL(acpi_current_gpe_count)
|