![Rafael J. Wysocki](/assets/img/avatar_default.png)
The logical address of every GPE block in system memory must be known before passing it to acpi_ev_initialize_gpe_block(), because memory cannot be mapped on the fly from an interrupt handler. Accordingly, the host OS must map every GPE block in system memory upfront and it can store the logical addresses of GPE blocks for future use. If these logical addresses were known to ACPICA, it could use them instead of the corresponding physical addresses of GPE block for GPE register accesses and the memory mapping lookups carried out by acpi_os_read_memory() and acpi_os_write_memory() on every attempt to access a GPE register would not be necessary any more. To allow that to happen, introduce the ACPI_GPE_USE_LOGICAL_ADDRESSES symbol to indicate whether or not the host OS wants ACPICA to use the logical addresses of GPE registers in system memory directly (which is the case if this symbol is defined). Moreover, conditional on whether ACPI_GPE_USE_LOGICAL_ADDRESSES is defined, introduce two new global variables for storing the logical addresses of the FADT GPE blocks 0 and 1, respectively, acpi_gbl_xgpe0_block_logical_address and acpi_gbl_xgpe1_block_logical_address, make acpi_ev_gpe_initialize() pass their values instead of the physical addresses of the GPE blocks in question to acpi_ev_create_gpe_block() and modify acpi_hw_gpe_read() and acpi_hw_gpe_write() to access memory directly via the addresses stored in the struct acpi_gpe_address objects, which are expected to be the logical addresses of GPE registers if ACPI_GPE_USE_LOGICAL_ADDRESSES is defined. With the above changes in place, a host OS wanting ACPICA to access GPE registers directly through their logical addresses needs to define the ACPI_GPE_USE_LOGICAL_ADDRESSES symbol and make sure that the logical addresses of the FADT GPE blocks 0 and 1 are stored in acpi_gbl_xgpe0_block_logical_address and acpi_gbl_xgpe1_block_logical_address, respectively, prior to calling acpi_ev_gpe_initialize(). [If such a host OS also uses acpi_install_gpe_block() to add non-FADT GPE register blocks located in system memory, it must pass their logical addresses instead of their physical addresses to this function.] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
399 lines
15 KiB
C
399 lines
15 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
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/******************************************************************************
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*
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* Name: acglobal.h - Declarations for global variables
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*
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* Copyright (C) 2000 - 2020, Intel Corp.
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*
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*****************************************************************************/
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#ifndef __ACGLOBAL_H__
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#define __ACGLOBAL_H__
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/*****************************************************************************
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*
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* Globals related to the incoming ACPI tables
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*
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****************************************************************************/
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/* Master list of all ACPI tables that were found in the RSDT/XSDT */
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ACPI_GLOBAL(struct acpi_table_list, acpi_gbl_root_table_list);
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/* DSDT information. Used to check for DSDT corruption */
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ACPI_GLOBAL(struct acpi_table_header *, acpi_gbl_DSDT);
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ACPI_GLOBAL(struct acpi_table_header, acpi_gbl_original_dsdt_header);
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ACPI_INIT_GLOBAL(u32, acpi_gbl_dsdt_index, ACPI_INVALID_TABLE_INDEX);
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ACPI_INIT_GLOBAL(u32, acpi_gbl_facs_index, ACPI_INVALID_TABLE_INDEX);
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ACPI_INIT_GLOBAL(u32, acpi_gbl_xfacs_index, ACPI_INVALID_TABLE_INDEX);
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ACPI_INIT_GLOBAL(u32, acpi_gbl_fadt_index, ACPI_INVALID_TABLE_INDEX);
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#if (!ACPI_REDUCED_HARDWARE)
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ACPI_GLOBAL(struct acpi_table_facs *, acpi_gbl_FACS);
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#endif /* !ACPI_REDUCED_HARDWARE */
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/* These addresses are calculated from the FADT Event Block addresses */
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ACPI_GLOBAL(struct acpi_generic_address, acpi_gbl_xpm1a_status);
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ACPI_GLOBAL(struct acpi_generic_address, acpi_gbl_xpm1a_enable);
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ACPI_GLOBAL(struct acpi_generic_address, acpi_gbl_xpm1b_status);
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ACPI_GLOBAL(struct acpi_generic_address, acpi_gbl_xpm1b_enable);
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#ifdef ACPI_GPE_USE_LOGICAL_ADDRESSES
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ACPI_GLOBAL(unsigned long, acpi_gbl_xgpe0_block_logical_address);
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ACPI_GLOBAL(unsigned long, acpi_gbl_xgpe1_block_logical_address);
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#endif /* ACPI_GPE_USE_LOGICAL_ADDRESSES */
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/*
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* Handle both ACPI 1.0 and ACPI 2.0+ Integer widths. The integer width is
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* determined by the revision of the DSDT: If the DSDT revision is less than
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* 2, use only the lower 32 bits of the internal 64-bit Integer.
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*/
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ACPI_GLOBAL(u8, acpi_gbl_integer_bit_width);
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ACPI_GLOBAL(u8, acpi_gbl_integer_byte_width);
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ACPI_GLOBAL(u8, acpi_gbl_integer_nybble_width);
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/*****************************************************************************
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*
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* Mutual exclusion within the ACPICA subsystem
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*
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****************************************************************************/
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/*
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* Predefined mutex objects. This array contains the
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* actual OS mutex handles, indexed by the local ACPI_MUTEX_HANDLEs.
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* (The table maps local handles to the real OS handles)
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*/
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ACPI_GLOBAL(struct acpi_mutex_info, acpi_gbl_mutex_info[ACPI_NUM_MUTEX]);
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/*
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* Global lock mutex is an actual AML mutex object
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* Global lock semaphore works in conjunction with the actual global lock
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* Global lock spinlock is used for "pending" handshake
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*/
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ACPI_GLOBAL(union acpi_operand_object *, acpi_gbl_global_lock_mutex);
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ACPI_GLOBAL(acpi_semaphore, acpi_gbl_global_lock_semaphore);
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ACPI_GLOBAL(acpi_spinlock, acpi_gbl_global_lock_pending_lock);
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ACPI_GLOBAL(u16, acpi_gbl_global_lock_handle);
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ACPI_GLOBAL(u8, acpi_gbl_global_lock_acquired);
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ACPI_GLOBAL(u8, acpi_gbl_global_lock_present);
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ACPI_GLOBAL(u8, acpi_gbl_global_lock_pending);
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/*
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* Spinlocks are used for interfaces that can be possibly called at
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* interrupt level
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*/
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ACPI_GLOBAL(acpi_spinlock, acpi_gbl_gpe_lock); /* For GPE data structs and registers */
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ACPI_GLOBAL(acpi_raw_spinlock, acpi_gbl_hardware_lock); /* For ACPI H/W except GPE registers */
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ACPI_GLOBAL(acpi_spinlock, acpi_gbl_reference_count_lock);
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/* Mutex for _OSI support */
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ACPI_GLOBAL(acpi_mutex, acpi_gbl_osi_mutex);
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/* Reader/Writer lock is used for namespace walk and dynamic table unload */
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ACPI_GLOBAL(struct acpi_rw_lock, acpi_gbl_namespace_rw_lock);
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/*****************************************************************************
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*
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* Miscellaneous globals
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*
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****************************************************************************/
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/* Object caches */
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ACPI_GLOBAL(acpi_cache_t *, acpi_gbl_namespace_cache);
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ACPI_GLOBAL(acpi_cache_t *, acpi_gbl_state_cache);
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ACPI_GLOBAL(acpi_cache_t *, acpi_gbl_ps_node_cache);
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ACPI_GLOBAL(acpi_cache_t *, acpi_gbl_ps_node_ext_cache);
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ACPI_GLOBAL(acpi_cache_t *, acpi_gbl_operand_cache);
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/* System */
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ACPI_INIT_GLOBAL(u32, acpi_gbl_startup_flags, 0);
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ACPI_INIT_GLOBAL(u8, acpi_gbl_shutdown, TRUE);
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ACPI_INIT_GLOBAL(u8, acpi_gbl_early_initialization, TRUE);
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/* Global handlers */
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ACPI_GLOBAL(struct acpi_global_notify_handler, acpi_gbl_global_notify[2]);
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ACPI_GLOBAL(acpi_exception_handler, acpi_gbl_exception_handler);
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ACPI_GLOBAL(acpi_init_handler, acpi_gbl_init_handler);
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ACPI_GLOBAL(acpi_table_handler, acpi_gbl_table_handler);
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ACPI_GLOBAL(void *, acpi_gbl_table_handler_context);
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ACPI_GLOBAL(acpi_interface_handler, acpi_gbl_interface_handler);
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ACPI_GLOBAL(struct acpi_sci_handler_info *, acpi_gbl_sci_handler_list);
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/* Owner ID support */
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ACPI_GLOBAL(u32, acpi_gbl_owner_id_mask[ACPI_NUM_OWNERID_MASKS]);
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ACPI_GLOBAL(u8, acpi_gbl_last_owner_id_index);
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ACPI_GLOBAL(u8, acpi_gbl_next_owner_id_offset);
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/* Initialization sequencing */
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ACPI_INIT_GLOBAL(u8, acpi_gbl_namespace_initialized, FALSE);
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/* Miscellaneous */
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ACPI_GLOBAL(u32, acpi_gbl_original_mode);
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ACPI_GLOBAL(u32, acpi_gbl_ns_lookup_count);
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ACPI_GLOBAL(u32, acpi_gbl_ps_find_count);
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ACPI_GLOBAL(u16, acpi_gbl_pm1_enable_register_save);
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ACPI_GLOBAL(u8, acpi_gbl_debugger_configuration);
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ACPI_GLOBAL(u8, acpi_gbl_step_to_next_call);
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ACPI_GLOBAL(u8, acpi_gbl_acpi_hardware_present);
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ACPI_GLOBAL(u8, acpi_gbl_events_initialized);
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ACPI_GLOBAL(struct acpi_interface_info *, acpi_gbl_supported_interfaces);
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ACPI_GLOBAL(struct acpi_address_range *,
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acpi_gbl_address_range_list[ACPI_ADDRESS_RANGE_MAX]);
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/* Other miscellaneous, declared and initialized in utglobal */
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extern const char *acpi_gbl_sleep_state_names[ACPI_S_STATE_COUNT];
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extern const char *acpi_gbl_lowest_dstate_names[ACPI_NUM_sx_w_METHODS];
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extern const char *acpi_gbl_highest_dstate_names[ACPI_NUM_sx_d_METHODS];
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extern const char *acpi_gbl_region_types[ACPI_NUM_PREDEFINED_REGIONS];
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extern const char acpi_gbl_lower_hex_digits[];
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extern const char acpi_gbl_upper_hex_digits[];
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extern const struct acpi_opcode_info acpi_gbl_aml_op_info[AML_NUM_OPCODES];
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/* Lists for tracking memory allocations (debug only) */
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#ifdef ACPI_DBG_TRACK_ALLOCATIONS
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ACPI_GLOBAL(struct acpi_memory_list *, acpi_gbl_global_list);
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ACPI_GLOBAL(struct acpi_memory_list *, acpi_gbl_ns_node_list);
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ACPI_GLOBAL(u8, acpi_gbl_display_final_mem_stats);
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ACPI_GLOBAL(u8, acpi_gbl_disable_mem_tracking);
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ACPI_GLOBAL(u8, acpi_gbl_verbose_leak_dump);
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#endif
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/*****************************************************************************
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*
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* ACPI Namespace
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*
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****************************************************************************/
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#define NUM_PREDEFINED_NAMES 10
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ACPI_GLOBAL(struct acpi_namespace_node, acpi_gbl_root_node_struct);
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ACPI_GLOBAL(struct acpi_namespace_node *, acpi_gbl_root_node);
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ACPI_GLOBAL(struct acpi_namespace_node *, acpi_gbl_fadt_gpe_device);
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extern const u8 acpi_gbl_ns_properties[ACPI_NUM_NS_TYPES];
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extern const struct acpi_predefined_names
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acpi_gbl_pre_defined_names[NUM_PREDEFINED_NAMES];
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#ifdef ACPI_DEBUG_OUTPUT
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ACPI_GLOBAL(u32, acpi_gbl_current_node_count);
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ACPI_GLOBAL(u32, acpi_gbl_current_node_size);
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ACPI_GLOBAL(u32, acpi_gbl_max_concurrent_node_count);
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ACPI_GLOBAL(acpi_size *, acpi_gbl_entry_stack_pointer);
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ACPI_GLOBAL(acpi_size *, acpi_gbl_lowest_stack_pointer);
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ACPI_GLOBAL(u32, acpi_gbl_deepest_nesting);
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ACPI_INIT_GLOBAL(u32, acpi_gbl_nesting_level, 0);
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#endif
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/*****************************************************************************
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*
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* Interpreter/Parser globals
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*
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****************************************************************************/
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/* Control method single step flag */
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ACPI_GLOBAL(u8, acpi_gbl_cm_single_step);
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ACPI_GLOBAL(struct acpi_thread_state *, acpi_gbl_current_walk_list);
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ACPI_INIT_GLOBAL(union acpi_parse_object, *acpi_gbl_current_scope, NULL);
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/* ASL/ASL+ converter */
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ACPI_INIT_GLOBAL(u8, acpi_gbl_capture_comments, FALSE);
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ACPI_INIT_GLOBAL(struct acpi_comment_node, *acpi_gbl_last_list_head, NULL);
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/*****************************************************************************
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*
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* Hardware globals
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*
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****************************************************************************/
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extern struct acpi_bit_register_info
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acpi_gbl_bit_register_info[ACPI_NUM_BITREG];
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ACPI_GLOBAL(u8, acpi_gbl_sleep_type_a);
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ACPI_GLOBAL(u8, acpi_gbl_sleep_type_b);
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/*****************************************************************************
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*
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* Event and GPE globals
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*
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****************************************************************************/
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#if (!ACPI_REDUCED_HARDWARE)
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ACPI_GLOBAL(u8, acpi_gbl_all_gpes_initialized);
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ACPI_GLOBAL(struct acpi_gpe_xrupt_info *, acpi_gbl_gpe_xrupt_list_head);
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ACPI_GLOBAL(struct acpi_gpe_block_info *,
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acpi_gbl_gpe_fadt_blocks[ACPI_MAX_GPE_BLOCKS]);
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ACPI_GLOBAL(acpi_gbl_event_handler, acpi_gbl_global_event_handler);
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ACPI_GLOBAL(void *, acpi_gbl_global_event_handler_context);
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ACPI_GLOBAL(struct acpi_fixed_event_handler,
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acpi_gbl_fixed_event_handlers[ACPI_NUM_FIXED_EVENTS]);
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extern struct acpi_fixed_event_info
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acpi_gbl_fixed_event_info[ACPI_NUM_FIXED_EVENTS];
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#endif /* !ACPI_REDUCED_HARDWARE */
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/*****************************************************************************
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*
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* Debug support
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*
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****************************************************************************/
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/* Event counters */
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ACPI_GLOBAL(u32, acpi_method_count);
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ACPI_GLOBAL(u32, acpi_gpe_count);
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ACPI_GLOBAL(u32, acpi_sci_count);
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ACPI_GLOBAL(u32, acpi_fixed_event_count[ACPI_NUM_FIXED_EVENTS]);
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/* Dynamic control method tracing mechanism */
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ACPI_GLOBAL(u32, acpi_gbl_original_dbg_level);
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ACPI_GLOBAL(u32, acpi_gbl_original_dbg_layer);
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/*****************************************************************************
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*
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* Debugger and Disassembler
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*
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****************************************************************************/
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ACPI_INIT_GLOBAL(u8, acpi_gbl_db_output_flags, ACPI_DB_CONSOLE_OUTPUT);
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#ifdef ACPI_DISASSEMBLER
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/* Do not disassemble buffers to resource descriptors */
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ACPI_INIT_GLOBAL(u8, acpi_gbl_no_resource_disassembly, FALSE);
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ACPI_INIT_GLOBAL(u8, acpi_gbl_ignore_noop_operator, FALSE);
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ACPI_INIT_GLOBAL(u8, acpi_gbl_cstyle_disassembly, TRUE);
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ACPI_INIT_GLOBAL(u8, acpi_gbl_force_aml_disassembly, FALSE);
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ACPI_INIT_GLOBAL(u8, acpi_gbl_dm_opt_verbose, TRUE);
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ACPI_INIT_GLOBAL(u8, acpi_gbl_dm_emit_external_opcodes, FALSE);
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ACPI_INIT_GLOBAL(u8, acpi_gbl_do_disassembler_optimizations, TRUE);
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ACPI_INIT_GLOBAL(ACPI_PARSE_OBJECT_LIST, *acpi_gbl_temp_list_head, NULL);
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ACPI_GLOBAL(u8, acpi_gbl_dm_opt_disasm);
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ACPI_GLOBAL(u8, acpi_gbl_dm_opt_listing);
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ACPI_GLOBAL(u8, acpi_gbl_num_external_methods);
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ACPI_GLOBAL(u32, acpi_gbl_resolved_external_methods);
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ACPI_GLOBAL(struct acpi_external_list *, acpi_gbl_external_list);
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ACPI_GLOBAL(struct acpi_external_file *, acpi_gbl_external_file_list);
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#endif
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#ifdef ACPI_DEBUGGER
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ACPI_INIT_GLOBAL(u8, acpi_gbl_abort_method, FALSE);
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ACPI_INIT_GLOBAL(acpi_thread_id, acpi_gbl_db_thread_id, ACPI_INVALID_THREAD_ID);
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ACPI_INIT_GLOBAL(u32, acpi_gbl_next_cmd_num, 1);
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ACPI_GLOBAL(u8, acpi_gbl_db_opt_no_ini_methods);
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ACPI_GLOBAL(u8, acpi_gbl_db_opt_no_region_support);
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ACPI_GLOBAL(u8, acpi_gbl_db_output_to_file);
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ACPI_GLOBAL(char *, acpi_gbl_db_buffer);
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ACPI_GLOBAL(char *, acpi_gbl_db_filename);
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ACPI_GLOBAL(u32, acpi_gbl_db_debug_level);
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ACPI_GLOBAL(u32, acpi_gbl_db_console_debug_level);
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ACPI_GLOBAL(struct acpi_namespace_node *, acpi_gbl_db_scope_node);
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ACPI_GLOBAL(u8, acpi_gbl_db_terminate_loop);
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ACPI_GLOBAL(u8, acpi_gbl_db_threads_terminated);
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ACPI_GLOBAL(char *, acpi_gbl_db_args[ACPI_DEBUGGER_MAX_ARGS]);
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ACPI_GLOBAL(acpi_object_type, acpi_gbl_db_arg_types[ACPI_DEBUGGER_MAX_ARGS]);
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/* These buffers should all be the same size */
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ACPI_GLOBAL(char, acpi_gbl_db_parsed_buf[ACPI_DB_LINE_BUFFER_SIZE]);
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ACPI_GLOBAL(char, acpi_gbl_db_scope_buf[ACPI_DB_LINE_BUFFER_SIZE]);
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ACPI_GLOBAL(char, acpi_gbl_db_debug_filename[ACPI_DB_LINE_BUFFER_SIZE]);
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/* Statistics globals */
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ACPI_GLOBAL(u16, acpi_gbl_obj_type_count[ACPI_TOTAL_TYPES]);
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ACPI_GLOBAL(u16, acpi_gbl_node_type_count[ACPI_TOTAL_TYPES]);
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ACPI_GLOBAL(u16, acpi_gbl_obj_type_count_misc);
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ACPI_GLOBAL(u16, acpi_gbl_node_type_count_misc);
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ACPI_GLOBAL(u32, acpi_gbl_num_nodes);
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ACPI_GLOBAL(u32, acpi_gbl_num_objects);
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#endif /* ACPI_DEBUGGER */
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#if defined (ACPI_DISASSEMBLER) || defined (ACPI_ASL_COMPILER)
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ACPI_GLOBAL(const char, *acpi_gbl_pld_panel_list[]);
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ACPI_GLOBAL(const char, *acpi_gbl_pld_vertical_position_list[]);
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ACPI_GLOBAL(const char, *acpi_gbl_pld_horizontal_position_list[]);
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ACPI_GLOBAL(const char, *acpi_gbl_pld_shape_list[]);
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ACPI_INIT_GLOBAL(u8, acpi_gbl_disasm_flag, FALSE);
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#endif
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/*****************************************************************************
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*
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* ACPICA application-specific globals
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*
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****************************************************************************/
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/* ASL-to-ASL+ conversion utility (implemented within the iASL compiler) */
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#ifdef ACPI_ASL_COMPILER
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ACPI_INIT_GLOBAL(char *, acpi_gbl_current_inline_comment, NULL);
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ACPI_INIT_GLOBAL(char *, acpi_gbl_current_end_node_comment, NULL);
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ACPI_INIT_GLOBAL(char *, acpi_gbl_current_open_brace_comment, NULL);
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ACPI_INIT_GLOBAL(char *, acpi_gbl_current_close_brace_comment, NULL);
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ACPI_INIT_GLOBAL(char *, acpi_gbl_root_filename, NULL);
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ACPI_INIT_GLOBAL(char *, acpi_gbl_current_filename, NULL);
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ACPI_INIT_GLOBAL(char *, acpi_gbl_current_parent_filename, NULL);
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ACPI_INIT_GLOBAL(char *, acpi_gbl_current_include_filename, NULL);
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ACPI_INIT_GLOBAL(struct acpi_comment_node, *acpi_gbl_def_blk_comment_list_head,
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NULL);
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ACPI_INIT_GLOBAL(struct acpi_comment_node, *acpi_gbl_def_blk_comment_list_tail,
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NULL);
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ACPI_INIT_GLOBAL(struct acpi_comment_node, *acpi_gbl_reg_comment_list_head,
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NULL);
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ACPI_INIT_GLOBAL(struct acpi_comment_node, *acpi_gbl_reg_comment_list_tail,
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NULL);
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ACPI_INIT_GLOBAL(struct acpi_comment_node, *acpi_gbl_inc_comment_list_head,
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NULL);
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ACPI_INIT_GLOBAL(struct acpi_comment_node, *acpi_gbl_inc_comment_list_tail,
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NULL);
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ACPI_INIT_GLOBAL(struct acpi_comment_node, *acpi_gbl_end_blk_comment_list_head,
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|
NULL);
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ACPI_INIT_GLOBAL(struct acpi_comment_node, *acpi_gbl_end_blk_comment_list_tail,
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|
NULL);
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|
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ACPI_INIT_GLOBAL(struct acpi_comment_addr_node,
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*acpi_gbl_comment_addr_list_head, NULL);
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ACPI_INIT_GLOBAL(struct acpi_file_node, *acpi_gbl_file_tree_root, NULL);
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ACPI_GLOBAL(acpi_cache_t *, acpi_gbl_reg_comment_cache);
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ACPI_GLOBAL(acpi_cache_t *, acpi_gbl_comment_addr_cache);
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ACPI_GLOBAL(acpi_cache_t *, acpi_gbl_file_cache);
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|
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ACPI_INIT_GLOBAL(u8, acpi_gbl_debug_asl_conversion, FALSE);
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ACPI_INIT_GLOBAL(ACPI_FILE, acpi_gbl_conv_debug_file, NULL);
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ACPI_GLOBAL(char, acpi_gbl_table_sig[4]);
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#endif
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#ifdef ACPI_APPLICATION
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ACPI_INIT_GLOBAL(ACPI_FILE, acpi_gbl_debug_file, NULL);
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ACPI_INIT_GLOBAL(ACPI_FILE, acpi_gbl_output_file, NULL);
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ACPI_INIT_GLOBAL(u8, acpi_gbl_debug_timeout, FALSE);
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|
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/* Print buffer */
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|
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ACPI_GLOBAL(acpi_spinlock, acpi_gbl_print_lock); /* For print buffer */
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ACPI_GLOBAL(char, acpi_gbl_print_buffer[1024]);
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#endif /* ACPI_APPLICATION */
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#endif /* __ACGLOBAL_H__ */
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