 d13bd5a602
			
		
	
	
	d13bd5a602
	
	
	
		
			
			From ACPICA's perspective, <acpi/actypes.h> should be included after
inclusion of <acpi/platform/acenv.h>.  But currently in Linux,
<acpi/platform/aclinux.h> included by <acpi/platform/acenv.h> has
included <acpi/actypes.h> to find ACPICA types for inline functions.
This causes the following problem:
1. Redundant code in <asm/acpi.h> and <acpi/platform/aclinux.h>:
   Linux must be careful to keep conditions for <acpi/actypes.h> inclusion
   consistent with the conditions for <acpi/platform/aclinux.h> inclusion.
   Which finally leads to the issue that we have to keep many useless macro
   definitions in <acpi/platform/aclinux.h> or <asm/acpi.h>.
   Such conditions include:
     COMPILER_DEPENDENT_UINT64
     COMPILER_DEPENDENT_INT64
     ACPI_INLINE
     ACPI_SYSTEM_XFACE
     ACPI_EXTERNAL_XFACE
     ACPI_INTERNAL_XFACE
     ACPI_INTERNAL_VAR_XFACE
     ACPI_MUTEX_TYPE
     DEBUGGER_THREADING
     ACPI_ACQUIRE_GLOBAL_LOCK
     ACPI_RELEASE_GLOBAL_LOCK
     ACPI_FLUSH_CPU_CACHE
   They have default implementations in <include/acpi/platform/acenv.h>
   while Linux need to keep a copy in <asm/acpi.h> to avoid build errors.
This patch introduces <acpi/platform/aclinuxex.h> to fix this issue by
splitting conditions and declarations (most of them are inline functions)
into 2 header files so that the wrong inclusion of <acpi/actypes.h> can be
removed from <acpi/platform/aclinux.h>.
This patch also removes old ACPI_NATIVE_INTERFACE_HEADER mechanism which is
not preferred by Linux and adds the platform/acenvex.h to be the solution
to solve this issue.
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
		
	
			
		
			
				
	
	
		
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			67 lines
		
	
	
	
		
			3.1 KiB
			
		
	
	
	
		
			C
		
	
	
	
	
	
| /******************************************************************************
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|  *
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|  * Name: acpi.h - Master public include file used to interface to ACPICA
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|  *
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|  *****************************************************************************/
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| 
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| /*
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|  * Copyright (C) 2000 - 2014, 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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| 
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| #ifndef __ACPI_H__
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| #define __ACPI_H__
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| 
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| /*
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|  * Public include files for use by code that will interface to ACPICA.
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|  *
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|  * Information includes the ACPICA data types, names, exceptions, and
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|  * external interface prototypes. Also included are the definitions for
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|  * all ACPI tables (FADT, MADT, etc.)
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|  *
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|  * Note: The order of these include files is important.
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|  */
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| #include <acpi/platform/acenv.h>	/* Environment-specific items */
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| #include <acpi/acnames.h>		/* Common ACPI names and strings */
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| #include <acpi/actypes.h>		/* ACPICA data types and structures */
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| #include <acpi/acexcep.h>		/* ACPICA exceptions */
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| #include <acpi/actbl.h>		/* ACPI table definitions */
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| #include <acpi/acoutput.h>		/* Error output and Debug macros */
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| #include <acpi/acrestyp.h>		/* Resource Descriptor structs */
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| #include <acpi/acpiosxf.h>		/* OSL interfaces (ACPICA-to-OS) */
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| #include <acpi/acpixf.h>		/* ACPI core subsystem external interfaces */
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| #include <acpi/platform/acenvex.h>	/* Extra environment-specific items */
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| 
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| #endif				/* __ACPI_H__ */
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