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1/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
2/******************************************************************************
3 *
4 * Name: aclinux.h - OS specific defines, etc. for Linux
5 *
6 * Copyright (C) 2000 - 2026, Intel Corp.
7 *
8 *****************************************************************************/
9
10#ifndef __ACLINUX_H__
11#define __ACLINUX_H__
12
13#ifdef __KERNEL__
14
15/* ACPICA external files should not include ACPICA headers directly. */
16
17#if !defined(BUILDING_ACPICA) && !defined(_LINUX_ACPI_H)
18#error "Please do not include <acpi/acpi.h> directly, include <linux/acpi.h> instead."
19#endif
20
21#endif
22
23/* Common (in-kernel/user-space) ACPICA configuration */
24
25#define ACPI_USE_SYSTEM_CLIBRARY
26#define ACPI_USE_DO_WHILE_0
27#define ACPI_IGNORE_PACKAGE_RESOLUTION_ERRORS
28
29#ifdef __KERNEL__
30
31#define ACPI_USE_SYSTEM_INTTYPES
32#define ACPI_USE_GPE_POLLING
33
34/* Kernel specific ACPICA configuration */
35
36#ifdef CONFIG_PCI
37#define ACPI_PCI_CONFIGURED
38#endif
39
40#ifdef CONFIG_ACPI_REDUCED_HARDWARE_ONLY
41#define ACPI_REDUCED_HARDWARE 1
42#endif
43
44#ifdef CONFIG_ACPI_DEBUGGER
45#define ACPI_DEBUGGER
46#endif
47
48#ifdef CONFIG_ACPI_DEBUG
49#define ACPI_MUTEX_DEBUG
50#endif
51
52#include <linux/string.h>
53#include <linux/kernel.h>
54#include <linux/ctype.h>
55#include <linux/sched.h>
56#include <linux/atomic.h>
57#include <linux/math64.h>
58#include <linux/slab.h>
59#include <linux/spinlock_types.h>
60#ifdef EXPORT_ACPI_INTERFACES
61#include <linux/export.h>
62#endif
63#ifdef CONFIG_ACPI
64#include <asm/acenv.h>
65#endif
66
67#define ACPI_INIT_FUNCTION __init
68
69/* Use a specific bugging default separate from ACPICA */
70
71#undef ACPI_DEBUG_DEFAULT
72#define ACPI_DEBUG_DEFAULT (ACPI_LV_INFO | ACPI_LV_REPAIR)
73
74#ifndef CONFIG_ACPI
75
76/* External globals for __KERNEL__, stubs is needed */
77
78#define ACPI_GLOBAL(t,a)
79#define ACPI_INIT_GLOBAL(t,a,b)
80
81/* Generating stubs for configurable ACPICA macros */
82
83#define ACPI_NO_MEM_ALLOCATIONS
84
85/* Generating stubs for configurable ACPICA functions */
86
87#define ACPI_NO_ERROR_MESSAGES
88#undef ACPI_DEBUG_OUTPUT
89
90/* External interface for __KERNEL__, stub is needed */
91
92#define ACPI_EXTERNAL_RETURN_STATUS(prototype) \
93 static ACPI_INLINE prototype {return(AE_NOT_CONFIGURED);}
94#define ACPI_EXTERNAL_RETURN_OK(prototype) \
95 static ACPI_INLINE prototype {return(AE_OK);}
96#define ACPI_EXTERNAL_RETURN_VOID(prototype) \
97 static ACPI_INLINE prototype {return;}
98#define ACPI_EXTERNAL_RETURN_UINT32(prototype) \
99 static ACPI_INLINE prototype {return(0);}
100#define ACPI_EXTERNAL_RETURN_PTR(prototype) \
101 static ACPI_INLINE prototype {return(NULL);}
102
103#endif /* CONFIG_ACPI */
104
105/* Host-dependent types and defines for in-kernel ACPICA */
106
107#define ACPI_MACHINE_WIDTH BITS_PER_LONG
108#define ACPI_USE_NATIVE_MATH64
109#define ACPI_EXPORT_SYMBOL(symbol) EXPORT_SYMBOL(symbol);
110#define strtoul simple_strtoul
111
112#define acpi_cache_t struct kmem_cache
113#define acpi_spinlock spinlock_t *
114#define acpi_raw_spinlock raw_spinlock_t *
115#define acpi_cpu_flags unsigned long
116
117#define acpi_uintptr_t uintptr_t
118
119#define ACPI_TO_INTEGER(p) ((uintptr_t)(p))
120#define ACPI_OFFSET(d, f) offsetof(d, f)
121
122/* Use native linux version of acpi_os_allocate_zeroed */
123
124#define USE_NATIVE_ALLOCATE_ZEROED
125
126/* Use logical addresses for accessing GPE registers in system memory */
127
128#define ACPI_GPE_USE_LOGICAL_ADDRESSES
129
130/*
131 * Overrides for in-kernel ACPICA
132 */
133#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_initialize
134#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_terminate
135#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_allocate
136#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_allocate_zeroed
137#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_free
138#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_acquire_object
139#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_thread_id
140#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_create_lock
141#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_create_raw_lock
142#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_delete_raw_lock
143#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_acquire_raw_lock
144#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_release_raw_lock
145
146/*
147 * OSL interfaces used by debugger/disassembler
148 */
149#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_readable
150#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_writable
151#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_initialize_debugger
152#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_terminate_debugger
153
154/*
155 * OSL interfaces used by utilities
156 */
157#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_redirect_output
158#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_table_by_name
159#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_table_by_index
160#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_table_by_address
161#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_open_directory
162#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_next_filename
163#define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_close_directory
164
165#define ACPI_MSG_ERROR KERN_ERR "ACPI Error: "
166#define ACPI_MSG_EXCEPTION KERN_ERR "ACPI Exception: "
167#define ACPI_MSG_WARNING KERN_WARNING "ACPI Warning: "
168#define ACPI_MSG_INFO KERN_INFO "ACPI: "
169
170#define ACPI_MSG_BIOS_ERROR KERN_ERR "ACPI BIOS Error (bug): "
171#define ACPI_MSG_BIOS_WARNING KERN_WARNING "ACPI BIOS Warning (bug): "
172
173/*
174 * Linux wants to use designated initializers for function pointer structs.
175 */
176#define ACPI_STRUCT_INIT(field, value) .field = value
177
178#else /* !__KERNEL__ */
179
180#define ACPI_USE_STANDARD_HEADERS
181
182#ifdef ACPI_USE_STANDARD_HEADERS
183#include <stddef.h>
184#include <unistd.h>
185#include <stdint.h>
186
187#define ACPI_OFFSET(d, f) offsetof(d, f)
188#endif
189
190/* Define/disable kernel-specific declarators */
191
192#ifndef __init
193#define __init
194#endif
195#ifndef __iomem
196#define __iomem
197#endif
198
199/* Host-dependent types and defines for user-space ACPICA */
200
201#define ACPI_FLUSH_CPU_CACHE()
202#define ACPI_CAST_PTHREAD_T(pthread) ((acpi_thread_id) (pthread))
203
204#if defined(__ia64__) || (defined(__x86_64__) && !defined(__ILP32__)) ||\
205 defined(__aarch64__) || defined(__PPC64__) ||\
206 defined(__s390x__) || defined(__loongarch__) ||\
207 (defined(__riscv) && (defined(__LP64__) || defined(_LP64)))
208#define ACPI_MACHINE_WIDTH 64
209#define COMPILER_DEPENDENT_INT64 long
210#define COMPILER_DEPENDENT_UINT64 unsigned long
211#else
212#define ACPI_MACHINE_WIDTH 32
213#define COMPILER_DEPENDENT_INT64 long long
214#define COMPILER_DEPENDENT_UINT64 unsigned long long
215#define ACPI_USE_NATIVE_DIVIDE
216#define ACPI_USE_NATIVE_MATH64
217#endif
218
219#ifndef __cdecl
220#define __cdecl
221#endif
222
223#endif /* __KERNEL__ */
224
225#endif /* __ACLINUX_H__ */