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a210080195
The current ACPI GPEs initialization code has a problem that it enables some GPEs pointed to by device _PRW methods, generally intended for signaling wakeup events (system or device wakeup). These GPEs are then almost immediately disabled by the ACPI namespace scanning code with the help of acpi_gpe_can_wake(), but it would be better not to enable them at all until really necessary. Modify the initialization of GPEs so that the ones that have associated _Lxx or _Exx methods and are not pointed to by any _PRW methods will be enabled after the namespace scan is complete. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Len Brown <len.brown@intel.com>
236 lines
7.1 KiB
C
236 lines
7.1 KiB
C
/******************************************************************************
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*
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* Name: acevents.h - Event subcomponent prototypes and defines
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*
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*****************************************************************************/
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/*
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* Copyright (C) 2000 - 2010, Intel Corp.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions, and the following disclaimer,
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* without modification.
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* 2. Redistributions in binary form must reproduce at minimum a disclaimer
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* substantially similar to the "NO WARRANTY" disclaimer below
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* ("Disclaimer") and any redistribution must be conditioned upon
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* including a substantially similar Disclaimer requirement for further
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* binary redistribution.
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* 3. Neither the names of the above-listed copyright holders nor the names
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* of any contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* Alternatively, this software may be distributed under the terms of the
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* GNU General Public License ("GPL") version 2 as published by the Free
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* Software Foundation.
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*
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* NO WARRANTY
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGES.
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*/
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#ifndef __ACEVENTS_H__
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#define __ACEVENTS_H__
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/*
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* evevent
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*/
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acpi_status acpi_ev_initialize_events(void);
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acpi_status acpi_ev_install_xrupt_handlers(void);
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acpi_status acpi_ev_install_fadt_gpes(void);
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u32 acpi_ev_fixed_event_detect(void);
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/*
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* evmisc
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*/
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u8 acpi_ev_is_notify_object(struct acpi_namespace_node *node);
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acpi_status acpi_ev_acquire_global_lock(u16 timeout);
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acpi_status acpi_ev_release_global_lock(void);
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acpi_status acpi_ev_init_global_lock_handler(void);
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u32 acpi_ev_get_gpe_number_index(u32 gpe_number);
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acpi_status
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acpi_ev_queue_notify_request(struct acpi_namespace_node *node,
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u32 notify_value);
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/*
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* evgpe - Low-level GPE support
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*/
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u32 acpi_ev_gpe_detect(struct acpi_gpe_xrupt_info *gpe_xrupt_list);
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acpi_status
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acpi_ev_update_gpe_enable_mask(struct acpi_gpe_event_info *gpe_event_info);
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acpi_status acpi_ev_enable_gpe(struct acpi_gpe_event_info *gpe_event_info);
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acpi_status acpi_raw_enable_gpe(struct acpi_gpe_event_info *gpe_event_info);
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acpi_status acpi_raw_disable_gpe(struct acpi_gpe_event_info *gpe_event_info);
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struct acpi_gpe_event_info *acpi_ev_get_gpe_event_info(acpi_handle gpe_device,
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u32 gpe_number);
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struct acpi_gpe_event_info *acpi_ev_low_get_gpe_info(u32 gpe_number,
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struct acpi_gpe_block_info
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*gpe_block);
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/*
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* evgpeblk - Upper-level GPE block support
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*/
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acpi_status
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acpi_ev_create_gpe_block(struct acpi_namespace_node *gpe_device,
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struct acpi_generic_address *gpe_block_address,
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u32 register_count,
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u8 gpe_block_base_number,
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u32 interrupt_number,
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struct acpi_gpe_block_info **return_gpe_block);
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acpi_status
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acpi_ev_initialize_gpe_block(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
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struct acpi_gpe_block_info *gpe_block,
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void *ignored);
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acpi_status acpi_ev_delete_gpe_block(struct acpi_gpe_block_info *gpe_block);
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u32
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acpi_ev_gpe_dispatch(struct acpi_gpe_event_info *gpe_event_info,
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u32 gpe_number);
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/*
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* evgpeinit - GPE initialization and update
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*/
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acpi_status acpi_ev_gpe_initialize(void);
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void acpi_ev_update_gpes(acpi_owner_id table_owner_id);
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acpi_status
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acpi_ev_match_gpe_method(acpi_handle obj_handle,
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u32 level, void *context, void **return_value);
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acpi_status
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acpi_ev_match_prw_and_gpe(acpi_handle obj_handle,
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u32 level, void *context, void **return_value);
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/*
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* evgpeutil - GPE utilities
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*/
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acpi_status
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acpi_ev_walk_gpe_list(acpi_gpe_callback gpe_walk_callback, void *context);
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u8 acpi_ev_valid_gpe_event(struct acpi_gpe_event_info *gpe_event_info);
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struct acpi_gpe_xrupt_info *acpi_ev_get_gpe_xrupt_block(u32 interrupt_number);
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acpi_status acpi_ev_delete_gpe_xrupt(struct acpi_gpe_xrupt_info *gpe_xrupt);
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acpi_status
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acpi_ev_delete_gpe_handlers(struct acpi_gpe_xrupt_info *gpe_xrupt_info,
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struct acpi_gpe_block_info *gpe_block,
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void *context);
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/*
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* evregion - Address Space handling
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*/
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acpi_status acpi_ev_install_region_handlers(void);
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acpi_status acpi_ev_initialize_op_regions(void);
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acpi_status
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acpi_ev_address_space_dispatch(union acpi_operand_object *region_obj,
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u32 function,
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u32 region_offset, u32 bit_width, u64 *value);
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acpi_status
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acpi_ev_attach_region(union acpi_operand_object *handler_obj,
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union acpi_operand_object *region_obj,
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u8 acpi_ns_is_locked);
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void
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acpi_ev_detach_region(union acpi_operand_object *region_obj,
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u8 acpi_ns_is_locked);
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acpi_status
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acpi_ev_install_space_handler(struct acpi_namespace_node *node,
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acpi_adr_space_type space_id,
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acpi_adr_space_handler handler,
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acpi_adr_space_setup setup, void *context);
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acpi_status
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acpi_ev_execute_reg_methods(struct acpi_namespace_node *node,
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acpi_adr_space_type space_id);
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acpi_status
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acpi_ev_execute_reg_method(union acpi_operand_object *region_obj, u32 function);
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/*
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* evregini - Region initialization and setup
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*/
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acpi_status
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acpi_ev_system_memory_region_setup(acpi_handle handle,
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u32 function,
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void *handler_context,
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void **region_context);
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acpi_status
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acpi_ev_io_space_region_setup(acpi_handle handle,
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u32 function,
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void *handler_context, void **region_context);
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acpi_status
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acpi_ev_pci_config_region_setup(acpi_handle handle,
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u32 function,
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void *handler_context, void **region_context);
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acpi_status
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acpi_ev_cmos_region_setup(acpi_handle handle,
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u32 function,
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void *handler_context, void **region_context);
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acpi_status
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acpi_ev_pci_bar_region_setup(acpi_handle handle,
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u32 function,
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void *handler_context, void **region_context);
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acpi_status
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acpi_ev_default_region_setup(acpi_handle handle,
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u32 function,
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void *handler_context, void **region_context);
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acpi_status
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acpi_ev_initialize_region(union acpi_operand_object *region_obj,
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u8 acpi_ns_locked);
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/*
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* evsci - SCI (System Control Interrupt) handling/dispatch
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*/
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u32 ACPI_SYSTEM_XFACE acpi_ev_gpe_xrupt_handler(void *context);
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u32 acpi_ev_install_sci_handler(void);
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acpi_status acpi_ev_remove_sci_handler(void);
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u32 acpi_ev_initialize_sCI(u32 program_sCI);
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void acpi_ev_terminate(void);
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#endif /* __ACEVENTS_H__ */
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