1 /****************************************************************************** 2 * 3 * Name: aclinux.h - OS specific defines, etc. for Linux 4 * 5 *****************************************************************************/ 6 7 /* 8 * Copyright (C) 2000 - 2014, Intel Corp. 9 * All rights reserved. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions, and the following disclaimer, 16 * without modification. 17 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 18 * substantially similar to the "NO WARRANTY" disclaimer below 19 * ("Disclaimer") and any redistribution must be conditioned upon 20 * including a substantially similar Disclaimer requirement for further 21 * binary redistribution. 22 * 3. Neither the names of the above-listed copyright holders nor the names 23 * of any contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * Alternatively, this software may be distributed under the terms of the 27 * GNU General Public License ("GPL") version 2 as published by the Free 28 * Software Foundation. 29 * 30 * NO WARRANTY 31 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 32 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 33 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR 34 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 35 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 36 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 37 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 38 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 39 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING 40 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 41 * POSSIBILITY OF SUCH DAMAGES. 42 */ 43 44 #ifndef __ACLINUX_H__ 45 #define __ACLINUX_H__ 46 47 /* Common (in-kernel/user-space) ACPICA configuration */ 48 49 #define ACPI_USE_SYSTEM_CLIBRARY 50 #define ACPI_USE_DO_WHILE_0 51 #define ACPI_MUTEX_TYPE ACPI_BINARY_SEMAPHORE 52 53 54 #ifdef __KERNEL__ 55 56 #include <linux/string.h> 57 #include <linux/kernel.h> 58 #include <linux/ctype.h> 59 #include <linux/sched.h> 60 #include <linux/atomic.h> 61 #include <linux/math64.h> 62 #include <linux/slab.h> 63 #include <linux/spinlock_types.h> 64 #ifdef EXPORT_ACPI_INTERFACES 65 #include <linux/export.h> 66 #endif 67 #include <asm/acpi.h> 68 69 /* Host-dependent types and defines for in-kernel ACPICA */ 70 71 #define ACPI_MACHINE_WIDTH BITS_PER_LONG 72 #define ACPI_EXPORT_SYMBOL(symbol) EXPORT_SYMBOL(symbol); 73 #define strtoul simple_strtoul 74 75 #define ACPI_CACHE_T struct kmem_cache 76 #define ACPI_SPINLOCK spinlock_t * 77 #define ACPI_CPU_FLAGS unsigned long 78 79 #else /* !__KERNEL__ */ 80 81 #include <stdarg.h> 82 #include <string.h> 83 #include <stdlib.h> 84 #include <ctype.h> 85 #include <unistd.h> 86 87 /* Define/disable kernel-specific declarators */ 88 89 #ifndef __init 90 #define __init 91 #endif 92 93 #ifndef __iomem 94 #define __iomem 95 #endif 96 97 /* Host-dependent types and defines for user-space ACPICA */ 98 99 #define ACPI_FLUSH_CPU_CACHE() 100 #define ACPI_CAST_PTHREAD_T(Pthread) ((ACPI_THREAD_ID) (Pthread)) 101 102 #if defined(__ia64__) || defined(__x86_64__) ||\ 103 defined(__aarch64__) || defined(__PPC64__) 104 #define ACPI_MACHINE_WIDTH 64 105 #define COMPILER_DEPENDENT_INT64 long 106 #define COMPILER_DEPENDENT_UINT64 unsigned long 107 #else 108 #define ACPI_MACHINE_WIDTH 32 109 #define COMPILER_DEPENDENT_INT64 long long 110 #define COMPILER_DEPENDENT_UINT64 unsigned long long 111 #define ACPI_USE_NATIVE_DIVIDE 112 #endif 113 114 #ifndef __cdecl 115 #define __cdecl 116 #endif 117 118 #endif /* __KERNEL__ */ 119 120 /* Linux uses GCC */ 121 122 #include "acgcc.h" 123 124 125 #ifdef __KERNEL__ 126 127 /* 128 * FIXME: Inclusion of actypes.h 129 * Linux kernel need this before defining inline OSL interfaces as 130 * actypes.h need to be included to find ACPICA type definitions. 131 * Since from ACPICA's perspective, the actypes.h should be included after 132 * acenv.h (aclinux.h), this leads to a inclusion mis-ordering issue. 133 */ 134 #include <acpi/actypes.h> 135 136 /* 137 * Overrides for in-kernel ACPICA 138 */ 139 ACPI_STATUS __init AcpiOsInitialize ( 140 void); 141 #define ACPI_USE_ALTERNATE_PROTOTYPE_AcpiOsInitialize 142 143 ACPI_STATUS AcpiOsTerminate ( 144 void); 145 #define ACPI_USE_ALTERNATE_PROTOTYPE_AcpiOsTerminate 146 147 /* 148 * Memory allocation/deallocation 149 */ 150 151 /* 152 * The irqs_disabled() check is for resume from RAM. 153 * Interrupts are off during resume, just like they are for boot. 154 * However, boot has (system_state != SYSTEM_RUNNING) 155 * to quiet __might_sleep() in kmalloc() and resume does not. 156 */ 157 static inline void * 158 AcpiOsAllocate ( 159 ACPI_SIZE Size) 160 { 161 return kmalloc (Size, irqs_disabled () ? GFP_ATOMIC : GFP_KERNEL); 162 } 163 #define ACPI_USE_ALTERNATE_PROTOTYPE_AcpiOsAllocate 164 165 /* Use native linux version of AcpiOsAllocateZeroed */ 166 167 static inline void * 168 AcpiOsAllocateZeroed ( 169 ACPI_SIZE Size) 170 { 171 return kzalloc (Size, irqs_disabled () ? GFP_ATOMIC : GFP_KERNEL); 172 } 173 #define ACPI_USE_ALTERNATE_PROTOTYPE_AcpiOsAllocateZeroed 174 #define USE_NATIVE_ALLOCATE_ZEROED 175 176 static inline void 177 AcpiOsFree ( 178 void *Memory) 179 { 180 kfree (Memory); 181 } 182 #define ACPI_USE_ALTERNATE_PROTOTYPE_AcpiOsFree 183 184 static inline void * 185 AcpiOsAcquireObject ( 186 ACPI_CACHE_T *Cache) 187 { 188 return kmem_cache_zalloc (Cache, 189 irqs_disabled () ? GFP_ATOMIC : GFP_KERNEL); 190 } 191 #define ACPI_USE_ALTERNATE_PROTOTYPE_AcpiOsAcquireObject 192 193 static inline ACPI_THREAD_ID 194 AcpiOsGetThreadId ( 195 void) 196 { 197 return (ACPI_THREAD_ID) (unsigned long) current; 198 } 199 #define ACPI_USE_ALTERNATE_PROTOTYPE_AcpiOsGetThreadId 200 201 #ifndef CONFIG_PREEMPT 202 203 /* 204 * Used within ACPICA to show where it is safe to preempt execution 205 * when CONFIG_PREEMPT=n 206 */ 207 #define ACPI_PREEMPTION_POINT() \ 208 do { \ 209 if (!irqs_disabled()) \ 210 cond_resched(); \ 211 } while (0) 212 213 #endif 214 215 /* 216 * When lockdep is enabled, the spin_lock_init() macro stringifies it's 217 * argument and uses that as a name for the lock in debugging. 218 * By executing spin_lock_init() in a macro the key changes from "lock" for 219 * all locks to the name of the argument of acpi_os_create_lock(), which 220 * prevents lockdep from reporting false positives for ACPICA locks. 221 */ 222 #define AcpiOsCreateLock(__Handle) \ 223 ({ \ 224 spinlock_t *Lock = ACPI_ALLOCATE(sizeof(*Lock)); \ 225 if (Lock) { \ 226 *(__Handle) = Lock; \ 227 spin_lock_init(*(__Handle)); \ 228 } \ 229 Lock ? AE_OK : AE_NO_MEMORY; \ 230 }) 231 #define ACPI_USE_ALTERNATE_PROTOTYPE_AcpiOsCreateLock 232 233 void __iomem * 234 AcpiOsMapMemory ( 235 ACPI_PHYSICAL_ADDRESS Where, 236 ACPI_SIZE Length); 237 #define ACPI_USE_ALTERNATE_PROTOTYPE_AcpiOsMapMemory 238 239 void 240 AcpiOsUnmapMemory ( 241 void __iomem *LogicalAddress, 242 ACPI_SIZE Size); 243 #define ACPI_USE_ALTERNATE_PROTOTYPE_AcpiOsUnmapMemory 244 245 /* 246 * OSL interfaces used by debugger/disassembler 247 */ 248 #define ACPI_USE_ALTERNATE_PROTOTYPE_AcpiOsReadable 249 #define ACPI_USE_ALTERNATE_PROTOTYPE_AcpiOsWritable 250 251 /* 252 * OSL interfaces used by utilities 253 */ 254 #define ACPI_USE_ALTERNATE_PROTOTYPE_AcpiOsRedirectOutput 255 #define ACPI_USE_ALTERNATE_PROTOTYPE_AcpiOsGetLine 256 #define ACPI_USE_ALTERNATE_PROTOTYPE_AcpiOsGetTableByName 257 #define ACPI_USE_ALTERNATE_PROTOTYPE_AcpiOsGetTableByIndex 258 #define ACPI_USE_ALTERNATE_PROTOTYPE_AcpiOsGetTableByAddress 259 #define ACPI_USE_ALTERNATE_PROTOTYPE_AcpiOsOpenDirectory 260 #define ACPI_USE_ALTERNATE_PROTOTYPE_AcpiOsGetNextFilename 261 #define ACPI_USE_ALTERNATE_PROTOTYPE_AcpiOsCloseDirectory 262 263 /* 264 * OSL interfaces added by Linux 265 */ 266 void 267 EarlyAcpiOsUnmapMemory ( 268 void __iomem *Virt, 269 ACPI_SIZE Size); 270 271 #endif /* __KERNEL__ */ 272 273 #endif /* __ACLINUX_H__ */ 274