include/platform/aclinux.h

/******************************************************************************
 *
 * Name: aclinux.h - OS specific defines, etc. for Linux
 *
 *****************************************************************************/

/******************************************************************************
 *
 * 1. Copyright Notice
 *
 * Some or all of this work - Copyright (c) 1999 - 2025, Intel Corp.
 * All rights reserved.
 *
 * 2. License
 *
 * 2.1. This is your license from Intel Corp. under its intellectual property
 * rights. You may have additional license terms from the party that provided
 * you this software, covering your right to use that party's intellectual
 * property rights.
 *
 * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
 * copy of the source code appearing in this file ("Covered Code") an
 * irrevocable, perpetual, worldwide license under Intel's copyrights in the
 * base code distributed originally by Intel ("Original Intel Code") to copy,
 * make derivatives, distribute, use and display any portion of the Covered
 * Code in any form, with the right to sublicense such rights; and
 *
 * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
 * license (with the right to sublicense), under only those claims of Intel
 * patents that are infringed by the Original Intel Code, to make, use, sell,
 * offer to sell, and import the Covered Code and derivative works thereof
 * solely to the minimum extent necessary to exercise the above copyright
 * license, and in no event shall the patent license extend to any additions
 * to or modifications of the Original Intel Code. No other license or right
 * is granted directly or by implication, estoppel or otherwise;
 *
 * The above copyright and patent license is granted only if the following
 * conditions are met:
 *
 * 3. Conditions
 *
 * 3.1. Redistribution of Source with Rights to Further Distribute Source.
 * Redistribution of source code of any substantial portion of the Covered
 * Code or modification with rights to further distribute source must include
 * the above Copyright Notice, the above License, this list of Conditions,
 * and the following Disclaimer and Export Compliance provision. In addition,
 * Licensee must cause all Covered Code to which Licensee contributes to
 * contain a file documenting the changes Licensee made to create that Covered
 * Code and the date of any change. Licensee must include in that file the
 * documentation of any changes made by any predecessor Licensee. Licensee
 * must include a prominent statement that the modification is derived,
 * directly or indirectly, from Original Intel Code.
 *
 * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
 * Redistribution of source code of any substantial portion of the Covered
 * Code or modification without rights to further distribute source must
 * include the following Disclaimer and Export Compliance provision in the
 * documentation and/or other materials provided with distribution. In
 * addition, Licensee may not authorize further sublicense of source of any
 * portion of the Covered Code, and must include terms to the effect that the
 * license from Licensee to its licensee is limited to the intellectual
 * property embodied in the software Licensee provides to its licensee, and
 * not to intellectual property embodied in modifications its licensee may
 * make.
 *
 * 3.3. Redistribution of Executable. Redistribution in executable form of any
 * substantial portion of the Covered Code or modification must reproduce the
 * above Copyright Notice, and the following Disclaimer and Export Compliance
 * provision in the documentation and/or other materials provided with the
 * distribution.
 *
 * 3.4. Intel retains all right, title, and interest in and to the Original
 * Intel Code.
 *
 * 3.5. Neither the name Intel nor any other trademark owned or controlled by
 * Intel shall be used in advertising or otherwise to promote the sale, use or
 * other dealings in products derived from or relating to the Covered Code
 * without prior written authorization from Intel.
 *
 * 4. Disclaimer and Export Compliance
 *
 * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
 * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
 * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
 * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
 * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
 * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
 * PARTICULAR PURPOSE.
 *
 * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
 * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
 * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
 * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
 * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
 * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
 * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
 * LIMITED REMEDY.
 *
 * 4.3. Licensee shall not export, either directly or indirectly, any of this
 * software or system incorporating such software without first obtaining any
 * required license or other approval from the U. S. Department of Commerce or
 * any other agency or department of the United States Government. In the
 * event Licensee exports any such software from the United States or
 * re-exports any such software from a foreign destination, Licensee shall
 * ensure that the distribution and export/re-export of the software is in
 * compliance with all laws, regulations, orders, or other restrictions of the
 * U.S. Export Administration Regulations. Licensee agrees that neither it nor
 * any of its subsidiaries will export/re-export any technical data, process,
 * software, or service, directly or indirectly, to any country for which the
 * United States government or any agency thereof requires an export license,
 * other governmental approval, or letter of assurance, without first obtaining
 * such license, approval or letter.
 *
 *****************************************************************************
 *
 * Alternatively, you may choose to be licensed under the terms of the
 * following license:
 *
 * 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.
 *
 * 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 MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * 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 DAMAGE.
 *
 * Alternatively, you may choose to be licensed under the terms of the
 * GNU General Public License ("GPL") version 2 as published by the Free
 * Software Foundation.
 *
 *****************************************************************************/

#ifndef __ACLINUX_H__
#define __ACLINUX_H__

#ifdef __KERNEL__

/* ACPICA external files should not include ACPICA headers directly. */

#if !defined(BUILDING_ACPICA) && !defined(_LINUX_ACPI_H)
#error "Please don't include <acpi/acpi.h> directly, include <linux/acpi.h> instead."
#endif

#endif

/* Common (in-kernel/user-space) ACPICA configuration */

#define ACPI_USE_SYSTEM_CLIBRARY
#define ACPI_USE_DO_WHILE_0
#define ACPI_IGNORE_PACKAGE_RESOLUTION_ERRORS


#ifdef __KERNEL__

#define ACPI_USE_SYSTEM_INTTYPES
#define ACPI_USE_GPE_POLLING

/* Kernel specific ACPICA configuration */

#ifdef CONFIG_ACPI_REDUCED_HARDWARE_ONLY
#define ACPI_REDUCED_HARDWARE 1
#endif

#ifdef CONFIG_ACPI_DEBUGGER
#define ACPI_DEBUGGER
#endif

#ifdef CONFIG_ACPI_DEBUG
#define ACPI_MUTEX_DEBUG
#endif

#include <linux/string.h>
#include <linux/kernel.h>
#include <linux/ctype.h>
#include <linux/sched.h>
#include <linux/atomic.h>
#include <linux/math64.h>
#include <linux/slab.h>
#include <linux/spinlock_types.h>
#ifdef EXPORT_ACPI_INTERFACES
#include <linux/export.h>
#endif
#ifdef CONFIG_ACPI
#include <asm/acenv.h>
#endif

#define ACPI_INIT_FUNCTION __init

/* Use a specific bugging default separate from ACPICA */

#undef ACPI_DEBUG_DEFAULT
#define ACPI_DEBUG_DEFAULT          (ACPI_LV_INFO | ACPI_LV_REPAIR)

#ifndef CONFIG_ACPI

/* External globals for __KERNEL__, stubs is needed */

#define ACPI_GLOBAL(t,a)
#define ACPI_INIT_GLOBAL(t,a,b)

/* Generating stubs for configurable ACPICA macros */

#define ACPI_NO_MEM_ALLOCATIONS

/* Generating stubs for configurable ACPICA functions */

#define ACPI_NO_ERROR_MESSAGES
#undef ACPI_DEBUG_OUTPUT

/* External interface for __KERNEL__, stub is needed */

#define ACPI_EXTERNAL_RETURN_STATUS(Prototype) \
    static ACPI_INLINE Prototype {return(AE_NOT_CONFIGURED);}
#define ACPI_EXTERNAL_RETURN_OK(Prototype) \
    static ACPI_INLINE Prototype {return(AE_OK);}
#define ACPI_EXTERNAL_RETURN_VOID(Prototype) \
    static ACPI_INLINE Prototype {return;}
#define ACPI_EXTERNAL_RETURN_UINT32(Prototype) \
    static ACPI_INLINE Prototype {return(0);}
#define ACPI_EXTERNAL_RETURN_PTR(Prototype) \
    static ACPI_INLINE Prototype {return(NULL);}

#endif /* CONFIG_ACPI */

/* Host-dependent types and defines for in-kernel ACPICA */

#define ACPI_MACHINE_WIDTH          BITS_PER_LONG
#define ACPI_USE_NATIVE_MATH64
#define ACPI_EXPORT_SYMBOL(symbol)  EXPORT_SYMBOL(symbol);
#define strtoul                     simple_strtoul

#define ACPI_CACHE_T                struct kmem_cache
#define ACPI_SPINLOCK               spinlock_t *
#define ACPI_CPU_FLAGS              unsigned long

#define ACPI_UINTPTR_T              uintptr_t

#define ACPI_TO_INTEGER(p)          ((uintptr_t)(p))
#define ACPI_OFFSET(d, f)           offsetof(d, f)

/* Use native linux version of AcpiOsAllocateZeroed */

#define USE_NATIVE_ALLOCATE_ZEROED

/*
 * Overrides for in-kernel ACPICA
 */
#define ACPI_USE_ALTERNATE_PROTOTYPE_AcpiOsInitialize
#define ACPI_USE_ALTERNATE_PROTOTYPE_AcpiOsTerminate
#define ACPI_USE_ALTERNATE_PROTOTYPE_AcpiOsAllocate
#define ACPI_USE_ALTERNATE_PROTOTYPE_AcpiOsAllocateZeroed
#define ACPI_USE_ALTERNATE_PROTOTYPE_AcpiOsFree
#define ACPI_USE_ALTERNATE_PROTOTYPE_AcpiOsAcquireObject
#define ACPI_USE_ALTERNATE_PROTOTYPE_AcpiOsGetThreadId
#define ACPI_USE_ALTERNATE_PROTOTYPE_AcpiOsCreateLock

/*
 * OSL interfaces used by debugger/disassembler
 */
#define ACPI_USE_ALTERNATE_PROTOTYPE_AcpiOsReadable
#define ACPI_USE_ALTERNATE_PROTOTYPE_AcpiOsWritable
#define ACPI_USE_ALTERNATE_PROTOTYPE_AcpiOsInitializeDebugger
#define ACPI_USE_ALTERNATE_PROTOTYPE_AcpiOsTerminateDebugger

/*
 * OSL interfaces used by utilities
 */
#define ACPI_USE_ALTERNATE_PROTOTYPE_AcpiOsRedirectOutput
#define ACPI_USE_ALTERNATE_PROTOTYPE_AcpiOsGetTableByName
#define ACPI_USE_ALTERNATE_PROTOTYPE_AcpiOsGetTableByIndex
#define ACPI_USE_ALTERNATE_PROTOTYPE_AcpiOsGetTableByAddress
#define ACPI_USE_ALTERNATE_PROTOTYPE_AcpiOsOpenDirectory
#define ACPI_USE_ALTERNATE_PROTOTYPE_AcpiOsGetNextFilename
#define ACPI_USE_ALTERNATE_PROTOTYPE_AcpiOsCloseDirectory

#define ACPI_MSG_ERROR          KERN_ERR "ACPI Error: "
#define ACPI_MSG_EXCEPTION      KERN_ERR "ACPI Exception: "
#define ACPI_MSG_WARNING        KERN_WARNING "ACPI Warning: "
#define ACPI_MSG_INFO           KERN_INFO "ACPI: "

#define ACPI_MSG_BIOS_ERROR     KERN_ERR "ACPI BIOS Error (bug): "
#define ACPI_MSG_BIOS_WARNING   KERN_WARNING "ACPI BIOS Warning (bug): "

/*
 * Linux wants to use designated initializers for function pointer structs.
 */
#define ACPI_STRUCT_INIT(field, value)  .field = value

#else /* !__KERNEL__ */

#define ACPI_USE_STANDARD_HEADERS

#ifdef ACPI_USE_STANDARD_HEADERS
#include <stddef.h>
#include <unistd.h>
#include <stdint.h>

#define ACPI_OFFSET(d, f)   offsetof(d, f)
#endif

/* Define/disable kernel-specific declarators */

#ifndef __init
#define __init
#endif
#ifndef __iomem
#define __iomem
#endif

/* Host-dependent types and defines for user-space ACPICA */

#define ACPI_FLUSH_CPU_CACHE()
#define ACPI_CAST_PTHREAD_T(Pthread) ((ACPI_THREAD_ID) (Pthread))

#if defined(__ia64__)    || (defined(__x86_64__) && !defined(__ILP32__)) ||\
    defined(__aarch64__) || defined(__PPC64__) ||\
    defined(__s390x__)   || defined(__loongarch__) ||\
    (defined(__riscv) && (defined(__LP64__) || defined(_LP64)))
#define ACPI_MACHINE_WIDTH          64
#define COMPILER_DEPENDENT_INT64    long
#define COMPILER_DEPENDENT_UINT64   unsigned long
#else
#define ACPI_MACHINE_WIDTH          32
#define COMPILER_DEPENDENT_INT64    long long
#define COMPILER_DEPENDENT_UINT64   unsigned long long
#define ACPI_USE_NATIVE_DIVIDE
#define ACPI_USE_NATIVE_MATH64
#endif

#ifndef __cdecl
#define __cdecl
#endif

#endif /* __KERNEL__ */

#endif /* __ACLINUX_H__ */