include/acpi/acpiosxf.h - linux/kernel/git/viro/vfs - Git at Google

 /* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
 /******************************************************************************
  *
  * Name: acpiosxf.h - All interfaces to the OS Services Layer (OSL). These
  *                    interfaces must be implemented by OSL to interface the
  *                    ACPI components to the host operating system.
  *
  * Copyright (C) 2000 - 2019, Intel Corp.
  *
  *****************************************************************************/

 #ifndef __ACPIOSXF_H__
 #define __ACPIOSXF_H__

 #include <acpi/platform/acenv.h>
 #include <acpi/actypes.h>

 /* Types for acpi_os_execute */

 typedef enum {
 	OSL_GLOBAL_LOCK_HANDLER,
 	OSL_NOTIFY_HANDLER,
 	OSL_GPE_HANDLER,
 	OSL_DEBUGGER_MAIN_THREAD,
 	OSL_DEBUGGER_EXEC_THREAD,
 	OSL_EC_POLL_HANDLER,
 	OSL_EC_BURST_HANDLER
 } acpi_execute_type;

 #define ACPI_NO_UNIT_LIMIT          ((u32) -1)
 #define ACPI_MUTEX_SEM              1

 /* Functions for acpi_os_signal */

 #define ACPI_SIGNAL_FATAL           0
 #define ACPI_SIGNAL_BREAKPOINT      1

 struct acpi_signal_fatal_info {
 	u32 type;
 	u32 code;
 	u32 argument;
 };

 /*
  * OSL Initialization and shutdown primitives
  */
 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_initialize
 acpi_status acpi_os_initialize(void);
 #endif

 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_terminate
 acpi_status acpi_os_terminate(void);
 #endif

 /*
  * ACPI Table interfaces
  */
 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_root_pointer
 acpi_physical_address acpi_os_get_root_pointer(void);
 #endif

 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_predefined_override
 acpi_status
 acpi_os_predefined_override(const struct acpi_predefined_names *init_val,
 			    acpi_string *new_val);
 #endif

 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_table_override
 acpi_status
 acpi_os_table_override(struct acpi_table_header *existing_table,
 		       struct acpi_table_header **new_table);
 #endif

 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_physical_table_override
 acpi_status
 acpi_os_physical_table_override(struct acpi_table_header *existing_table,
 				acpi_physical_address *new_address,
 				u32 *new_table_length);
 #endif

 /*
  * Spinlock primitives
  */
 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_create_lock
 acpi_status acpi_os_create_lock(acpi_spinlock * out_handle);
 #endif

 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_delete_lock
 void acpi_os_delete_lock(acpi_spinlock handle);
 #endif

 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_acquire_lock
 acpi_cpu_flags acpi_os_acquire_lock(acpi_spinlock handle);
 #endif

 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_release_lock
 void acpi_os_release_lock(acpi_spinlock handle, acpi_cpu_flags flags);
 #endif

 /*
  * RAW spinlock primitives. If the OS does not provide them, fallback to
  * spinlock primitives
  */
 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_create_raw_lock
 # define acpi_os_create_raw_lock(out_handle)	acpi_os_create_lock(out_handle)
 #endif

 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_delete_raw_lock
 # define acpi_os_delete_raw_lock(handle)	acpi_os_delete_lock(handle)
 #endif

 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_acquire_raw_lock
 # define acpi_os_acquire_raw_lock(handle)	acpi_os_acquire_lock(handle)
 #endif

 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_release_raw_lock
 # define acpi_os_release_raw_lock(handle, flags)	\
 	acpi_os_release_lock(handle, flags)
 #endif

 /*
  * Semaphore primitives
  */
 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_create_semaphore
 acpi_status
 acpi_os_create_semaphore(u32 max_units,
 			 u32 initial_units, acpi_semaphore * out_handle);
 #endif

 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_delete_semaphore
 acpi_status acpi_os_delete_semaphore(acpi_semaphore handle);
 #endif

 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_wait_semaphore
 acpi_status
 acpi_os_wait_semaphore(acpi_semaphore handle, u32 units, u16 timeout);
 #endif

 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_signal_semaphore
 acpi_status acpi_os_signal_semaphore(acpi_semaphore handle, u32 units);
 #endif

 /*
  * Mutex primitives. May be configured to use semaphores instead via
  * ACPI_MUTEX_TYPE (see platform/acenv.h)
  */
 #if (ACPI_MUTEX_TYPE != ACPI_BINARY_SEMAPHORE)

 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_create_mutex
 acpi_status acpi_os_create_mutex(acpi_mutex * out_handle);
 #endif

 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_delete_mutex
 void acpi_os_delete_mutex(acpi_mutex handle);
 #endif

 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_acquire_mutex
 acpi_status acpi_os_acquire_mutex(acpi_mutex handle, u16 timeout);
 #endif

 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_release_mutex
 void acpi_os_release_mutex(acpi_mutex handle);
 #endif

 #endif

 /*
  * Memory allocation and mapping
  */
 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_allocate
 void *acpi_os_allocate(acpi_size size);
 #endif

 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_allocate_zeroed
 void *acpi_os_allocate_zeroed(acpi_size size);
 #endif

 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_free
 void acpi_os_free(void *memory);
 #endif

 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_map_memory
 void *acpi_os_map_memory(acpi_physical_address where, acpi_size length);
 #endif

 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_unmap_memory
 void acpi_os_unmap_memory(void *logical_address, acpi_size size);
 #endif

 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_physical_address
 acpi_status
 acpi_os_get_physical_address(void *logical_address,
 			     acpi_physical_address *physical_address);
 #endif

 /*
  * Memory/Object Cache
  */
 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_create_cache
 acpi_status
 acpi_os_create_cache(char *cache_name,
 		     u16 object_size,
 		     u16 max_depth, acpi_cache_t ** return_cache);
 #endif

 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_delete_cache
 acpi_status acpi_os_delete_cache(acpi_cache_t * cache);
 #endif

 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_purge_cache
 acpi_status acpi_os_purge_cache(acpi_cache_t * cache);
 #endif

 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_acquire_object
 void *acpi_os_acquire_object(acpi_cache_t * cache);
 #endif

 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_release_object
 acpi_status acpi_os_release_object(acpi_cache_t * cache, void *object);
 #endif

 /*
  * Interrupt handlers
  */
 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_install_interrupt_handler
 acpi_status
 acpi_os_install_interrupt_handler(u32 interrupt_number,
 				  acpi_osd_handler service_routine,
 				  void *context);
 #endif

 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_remove_interrupt_handler
 acpi_status
 acpi_os_remove_interrupt_handler(u32 interrupt_number,
 				 acpi_osd_handler service_routine);
 #endif

 /*
  * Threads and Scheduling
  */
 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_thread_id
 acpi_thread_id acpi_os_get_thread_id(void);
 #endif

 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_execute
 acpi_status
 acpi_os_execute(acpi_execute_type type,
 		acpi_osd_exec_callback function, void *context);
 #endif

 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_wait_events_complete
 void acpi_os_wait_events_complete(void);
 #endif

 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_sleep
 void acpi_os_sleep(u64 milliseconds);
 #endif

 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_stall
 void acpi_os_stall(u32 microseconds);
 #endif

 /*
  * Platform and hardware-independent I/O interfaces
  */
 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_read_port
 acpi_status acpi_os_read_port(acpi_io_address address, u32 *value, u32 width);
 #endif

 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_write_port
 acpi_status acpi_os_write_port(acpi_io_address address, u32 value, u32 width);
 #endif

 /*
  * Platform and hardware-independent physical memory interfaces
  */
 int acpi_os_read_iomem(void __iomem *virt_addr, u64 *value, u32 width);

 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_read_memory
 acpi_status
 acpi_os_read_memory(acpi_physical_address address, u64 *value, u32 width);
 #endif

 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_write_memory
 acpi_status
 acpi_os_write_memory(acpi_physical_address address, u64 value, u32 width);
 #endif

 /*
  * Platform and hardware-independent PCI configuration space access
  * Note: Can't use "Register" as a parameter, changed to "Reg" --
  * certain compilers complain.
  */
 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_read_pci_configuration
 acpi_status
 acpi_os_read_pci_configuration(struct acpi_pci_id *pci_id,
 			       u32 reg, u64 *value, u32 width);
 #endif

 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_write_pci_configuration
 acpi_status
 acpi_os_write_pci_configuration(struct acpi_pci_id *pci_id,
 				u32 reg, u64 value, u32 width);
 #endif

 /*
  * Miscellaneous
  */
 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_readable
 u8 acpi_os_readable(void *pointer, acpi_size length);
 #endif

 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_writable
 u8 acpi_os_writable(void *pointer, acpi_size length);
 #endif

 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_timer
 u64 acpi_os_get_timer(void);
 #endif

 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_signal
 acpi_status acpi_os_signal(u32 function, void *info);
 #endif

 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_enter_sleep
 acpi_status acpi_os_enter_sleep(u8 sleep_state, u32 rega_value, u32 regb_value);
 #endif

 /*
  * Debug print routines
  */
 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_printf
 ACPI_PRINTF_LIKE(1)
 void ACPI_INTERNAL_VAR_XFACE acpi_os_printf(const char *format, ...);
 #endif

 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_vprintf
 void acpi_os_vprintf(const char *format, va_list args);
 #endif

 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_redirect_output
 void acpi_os_redirect_output(void *destination);
 #endif

 /*
  * Debug IO
  */
 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_line
 acpi_status acpi_os_get_line(char *buffer, u32 buffer_length, u32 *bytes_read);
 #endif

 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_initialize_debugger
 acpi_status acpi_os_initialize_debugger(void);
 #endif

 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_terminate_debugger
 void acpi_os_terminate_debugger(void);
 #endif

 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_wait_command_ready
 acpi_status acpi_os_wait_command_ready(void);
 #endif

 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_notify_command_complete
 acpi_status acpi_os_notify_command_complete(void);
 #endif

 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_trace_point
 void
 acpi_os_trace_point(acpi_trace_event_type type,
 		    u8 begin, u8 *aml, char *pathname);
 #endif

 /*
  * Obtain ACPI table(s)
  */
 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_table_by_name
 acpi_status
 acpi_os_get_table_by_name(char *signature,
 			  u32 instance,
 			  struct acpi_table_header **table,
 			  acpi_physical_address *address);
 #endif

 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_table_by_index
 acpi_status
 acpi_os_get_table_by_index(u32 index,
 			   struct acpi_table_header **table,
 			   u32 *instance, acpi_physical_address *address);
 #endif

 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_table_by_address
 acpi_status
 acpi_os_get_table_by_address(acpi_physical_address address,
 			     struct acpi_table_header **table);
 #endif

 /*
  * Directory manipulation
  */
 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_open_directory
 void *acpi_os_open_directory(char *pathname,
 			     char *wildcard_spec, char requested_file_type);
 #endif

 /* requeste_file_type values */

 #define REQUEST_FILE_ONLY                   0
 #define REQUEST_DIR_ONLY                    1

 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_next_filename
 char *acpi_os_get_next_filename(void *dir_handle);
 #endif

 #ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_close_directory
 void acpi_os_close_directory(void *dir_handle);
 #endif

 #endif				/* __ACPIOSXF_H__ */
	/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
	/******************************************************************************
	*
	* Name: acpiosxf.h - All interfaces to the OS Services Layer (OSL). These
	* interfaces must be implemented by OSL to interface the
	* ACPI components to the host operating system.
	*
	* Copyright (C) 2000 - 2019, Intel Corp.
	*
	*****************************************************************************/

	#ifndef __ACPIOSXF_H__
	#define __ACPIOSXF_H__

	#include <acpi/platform/acenv.h>
	#include <acpi/actypes.h>

	/* Types for acpi_os_execute */

	typedef enum {
	OSL_GLOBAL_LOCK_HANDLER,
	OSL_NOTIFY_HANDLER,
	OSL_GPE_HANDLER,
	OSL_DEBUGGER_MAIN_THREAD,
	OSL_DEBUGGER_EXEC_THREAD,
	OSL_EC_POLL_HANDLER,
	OSL_EC_BURST_HANDLER
	} acpi_execute_type;

	#define ACPI_NO_UNIT_LIMIT ((u32) -1)
	#define ACPI_MUTEX_SEM 1

	/* Functions for acpi_os_signal */

	#define ACPI_SIGNAL_FATAL 0
	#define ACPI_SIGNAL_BREAKPOINT 1

	struct acpi_signal_fatal_info {
	u32 type;
	u32 code;
	u32 argument;
	};

	/*
	* OSL Initialization and shutdown primitives
	*/
	#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_initialize
	acpi_status acpi_os_initialize(void);
	#endif

	#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_terminate
	acpi_status acpi_os_terminate(void);
	#endif

	/*
	* ACPI Table interfaces
	*/
	#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_root_pointer
	acpi_physical_address acpi_os_get_root_pointer(void);
	#endif

	#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_predefined_override
	acpi_status
	acpi_os_predefined_override(const struct acpi_predefined_names *init_val,
	acpi_string *new_val);
	#endif

	#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_table_override
	acpi_status
	acpi_os_table_override(struct acpi_table_header *existing_table,
	struct acpi_table_header **new_table);
	#endif

	#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_physical_table_override
	acpi_status
	acpi_os_physical_table_override(struct acpi_table_header *existing_table,
	acpi_physical_address *new_address,
	u32 *new_table_length);
	#endif

	/*
	* Spinlock primitives
	*/
	#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_create_lock
	acpi_status acpi_os_create_lock(acpi_spinlock * out_handle);
	#endif

	#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_delete_lock
	void acpi_os_delete_lock(acpi_spinlock handle);
	#endif

	#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_acquire_lock
	acpi_cpu_flags acpi_os_acquire_lock(acpi_spinlock handle);
	#endif

	#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_release_lock
	void acpi_os_release_lock(acpi_spinlock handle, acpi_cpu_flags flags);
	#endif

	/*
	* RAW spinlock primitives. If the OS does not provide them, fallback to
	* spinlock primitives
	*/
	#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_create_raw_lock
	# define acpi_os_create_raw_lock(out_handle) acpi_os_create_lock(out_handle)
	#endif

	#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_delete_raw_lock
	# define acpi_os_delete_raw_lock(handle) acpi_os_delete_lock(handle)
	#endif

	#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_acquire_raw_lock
	# define acpi_os_acquire_raw_lock(handle) acpi_os_acquire_lock(handle)
	#endif

	#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_release_raw_lock
	# define acpi_os_release_raw_lock(handle, flags) \
	acpi_os_release_lock(handle, flags)
	#endif

	/*
	* Semaphore primitives
	*/
	#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_create_semaphore
	acpi_status
	acpi_os_create_semaphore(u32 max_units,
	u32 initial_units, acpi_semaphore * out_handle);
	#endif

	#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_delete_semaphore
	acpi_status acpi_os_delete_semaphore(acpi_semaphore handle);
	#endif

	#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_wait_semaphore
	acpi_status
	acpi_os_wait_semaphore(acpi_semaphore handle, u32 units, u16 timeout);
	#endif

	#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_signal_semaphore
	acpi_status acpi_os_signal_semaphore(acpi_semaphore handle, u32 units);
	#endif

	/*
	* Mutex primitives. May be configured to use semaphores instead via
	* ACPI_MUTEX_TYPE (see platform/acenv.h)
	*/
	#if (ACPI_MUTEX_TYPE != ACPI_BINARY_SEMAPHORE)

	#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_create_mutex
	acpi_status acpi_os_create_mutex(acpi_mutex * out_handle);
	#endif

	#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_delete_mutex
	void acpi_os_delete_mutex(acpi_mutex handle);
	#endif

	#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_acquire_mutex
	acpi_status acpi_os_acquire_mutex(acpi_mutex handle, u16 timeout);
	#endif

	#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_release_mutex
	void acpi_os_release_mutex(acpi_mutex handle);
	#endif

	#endif

	/*
	* Memory allocation and mapping
	*/
	#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_allocate
	void *acpi_os_allocate(acpi_size size);
	#endif

	#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_allocate_zeroed
	void *acpi_os_allocate_zeroed(acpi_size size);
	#endif

	#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_free
	void acpi_os_free(void *memory);
	#endif

	#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_map_memory
	void *acpi_os_map_memory(acpi_physical_address where, acpi_size length);
	#endif

	#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_unmap_memory
	void acpi_os_unmap_memory(void *logical_address, acpi_size size);
	#endif

	#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_physical_address
	acpi_status
	acpi_os_get_physical_address(void *logical_address,
	acpi_physical_address *physical_address);
	#endif

	/*
	* Memory/Object Cache
	*/
	#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_create_cache
	acpi_status
	acpi_os_create_cache(char *cache_name,
	u16 object_size,
	u16 max_depth, acpi_cache_t ** return_cache);
	#endif

	#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_delete_cache
	acpi_status acpi_os_delete_cache(acpi_cache_t * cache);
	#endif

	#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_purge_cache
	acpi_status acpi_os_purge_cache(acpi_cache_t * cache);
	#endif

	#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_acquire_object
	void acpi_os_acquire_object(acpi_cache_t cache);
	#endif

	#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_release_object
	acpi_status acpi_os_release_object(acpi_cache_t * cache, void *object);
	#endif

	/*
	* Interrupt handlers
	*/
	#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_install_interrupt_handler
	acpi_status
	acpi_os_install_interrupt_handler(u32 interrupt_number,
	acpi_osd_handler service_routine,
	void *context);
	#endif

	#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_remove_interrupt_handler
	acpi_status
	acpi_os_remove_interrupt_handler(u32 interrupt_number,
	acpi_osd_handler service_routine);
	#endif

	/*
	* Threads and Scheduling
	*/
	#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_thread_id
	acpi_thread_id acpi_os_get_thread_id(void);
	#endif

	#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_execute
	acpi_status
	acpi_os_execute(acpi_execute_type type,
	acpi_osd_exec_callback function, void *context);
	#endif

	#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_wait_events_complete
	void acpi_os_wait_events_complete(void);
	#endif

	#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_sleep
	void acpi_os_sleep(u64 milliseconds);
	#endif

	#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_stall
	void acpi_os_stall(u32 microseconds);
	#endif

	/*
	* Platform and hardware-independent I/O interfaces
	*/
	#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_read_port
	acpi_status acpi_os_read_port(acpi_io_address address, u32 *value, u32 width);
	#endif

	#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_write_port
	acpi_status acpi_os_write_port(acpi_io_address address, u32 value, u32 width);
	#endif

	/*
	* Platform and hardware-independent physical memory interfaces
	*/
	int acpi_os_read_iomem(void __iomem virt_addr, u64 value, u32 width);

	#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_read_memory
	acpi_status
	acpi_os_read_memory(acpi_physical_address address, u64 *value, u32 width);
	#endif

	#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_write_memory
	acpi_status
	acpi_os_write_memory(acpi_physical_address address, u64 value, u32 width);
	#endif

	/*
	* Platform and hardware-independent PCI configuration space access
	* Note: Can't use "Register" as a parameter, changed to "Reg" --
	* certain compilers complain.
	*/
	#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_read_pci_configuration
	acpi_status
	acpi_os_read_pci_configuration(struct acpi_pci_id *pci_id,
	u32 reg, u64 *value, u32 width);
	#endif

	#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_write_pci_configuration
	acpi_status
	acpi_os_write_pci_configuration(struct acpi_pci_id *pci_id,
	u32 reg, u64 value, u32 width);
	#endif

	/*
	* Miscellaneous
	*/
	#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_readable
	u8 acpi_os_readable(void *pointer, acpi_size length);
	#endif

	#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_writable
	u8 acpi_os_writable(void *pointer, acpi_size length);
	#endif

	#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_timer
	u64 acpi_os_get_timer(void);
	#endif

	#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_signal
	acpi_status acpi_os_signal(u32 function, void *info);
	#endif

	#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_enter_sleep
	acpi_status acpi_os_enter_sleep(u8 sleep_state, u32 rega_value, u32 regb_value);
	#endif

	/*
	* Debug print routines
	*/
	#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_printf
	ACPI_PRINTF_LIKE(1)
	void ACPI_INTERNAL_VAR_XFACE acpi_os_printf(const char *format, ...);
	#endif

	#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_vprintf
	void acpi_os_vprintf(const char *format, va_list args);
	#endif

	#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_redirect_output
	void acpi_os_redirect_output(void *destination);
	#endif

	/*
	* Debug IO
	*/
	#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_line
	acpi_status acpi_os_get_line(char buffer, u32 buffer_length, u32 bytes_read);
	#endif

	#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_initialize_debugger
	acpi_status acpi_os_initialize_debugger(void);
	#endif

	#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_terminate_debugger
	void acpi_os_terminate_debugger(void);
	#endif

	#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_wait_command_ready
	acpi_status acpi_os_wait_command_ready(void);
	#endif

	#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_notify_command_complete
	acpi_status acpi_os_notify_command_complete(void);
	#endif

	#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_trace_point
	void
	acpi_os_trace_point(acpi_trace_event_type type,
	u8 begin, u8 aml, char pathname);
	#endif

	/*
	* Obtain ACPI table(s)
	*/
	#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_table_by_name
	acpi_status
	acpi_os_get_table_by_name(char *signature,
	u32 instance,
	struct acpi_table_header **table,
	acpi_physical_address *address);
	#endif

	#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_table_by_index
	acpi_status
	acpi_os_get_table_by_index(u32 index,
	struct acpi_table_header **table,
	u32 instance, acpi_physical_address address);
	#endif

	#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_table_by_address
	acpi_status
	acpi_os_get_table_by_address(acpi_physical_address address,
	struct acpi_table_header **table);
	#endif

	/*
	* Directory manipulation
	*/
	#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_open_directory
	void acpi_os_open_directory(char pathname,
	char *wildcard_spec, char requested_file_type);
	#endif

	/* requeste_file_type values */

	#define REQUEST_FILE_ONLY 0
	#define REQUEST_DIR_ONLY 1

	#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_next_filename
	char acpi_os_get_next_filename(void dir_handle);
	#endif

	#ifndef ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_close_directory
	void acpi_os_close_directory(void *dir_handle);
	#endif

	#endif /* __ACPIOSXF_H__ */