1 /****************************************************************************** 2 * 3 * Name: aclinux.h - OS specific defines, etc. for Linux 4 * 5 *****************************************************************************/ 6 7 /* 8 * Copyright (C) 2000 - 2013, 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 /* Host-dependent types and defines for user-space ACPICA */ 88 89 #define ACPI_FLUSH_CPU_CACHE() 90 #define ACPI_CAST_PTHREAD_T(Pthread) ((ACPI_THREAD_ID) (Pthread)) 91 92 #if defined(__ia64__) || defined(__x86_64__) || defined(__aarch64__) 93 #define ACPI_MACHINE_WIDTH 64 94 #define COMPILER_DEPENDENT_INT64 long 95 #define COMPILER_DEPENDENT_UINT64 unsigned long 96 #else 97 #define ACPI_MACHINE_WIDTH 32 98 #define COMPILER_DEPENDENT_INT64 long long 99 #define COMPILER_DEPENDENT_UINT64 unsigned long long 100 #define ACPI_USE_NATIVE_DIVIDE 101 #endif 102 103 #ifndef __cdecl 104 #define __cdecl 105 #endif 106 107 #endif /* __KERNEL__ */ 108 109 /* Linux uses GCC */ 110 111 #include "acgcc.h" 112 113 114 #ifdef __KERNEL__ 115 116 /* 117 * FIXME: Inclusion of actypes.h 118 * Linux kernel need this before defining inline OSL interfaces as 119 * actypes.h need to be included to find ACPICA type definitions. 120 * Since from ACPICA's perspective, the actypes.h should be included after 121 * acenv.h (aclinux.h), this leads to a inclusion mis-ordering issue. 122 */ 123 #include <acpi/actypes.h> 124 125 /* 126 * Overrides for in-kernel ACPICA 127 */ 128 ACPI_STATUS __init AcpiOsInitialize ( 129 void); 130 #define ACPI_USE_ALTERNATE_PROTOTYPE_AcpiOsInitialize 131 132 ACPI_STATUS AcpiOsTerminate ( 133 void); 134 #define ACPI_USE_ALTERNATE_PROTOTYPE_AcpiOsTerminate 135 136 /* 137 * Memory allocation/deallocation 138 */ 139 140 /* 141 * The irqs_disabled() check is for resume from RAM. 142 * Interrupts are off during resume, just like they are for boot. 143 * However, boot has (system_state != SYSTEM_RUNNING) 144 * to quiet __might_sleep() in kmalloc() and resume does not. 145 */ 146 static inline void * 147 AcpiOsAllocate ( 148 ACPI_SIZE Size) 149 { 150 return kmalloc (Size, irqs_disabled () ? GFP_ATOMIC : GFP_KERNEL); 151 } 152 #define ACPI_USE_ALTERNATE_PROTOTYPE_AcpiOsAllocate 153 154 /* Use native linux version of AcpiOsAllocateZeroed */ 155 156 static inline void * 157 AcpiOsAllocateZeroed ( 158 ACPI_SIZE Size) 159 { 160 return kzalloc (Size, irqs_disabled () ? GFP_ATOMIC : GFP_KERNEL); 161 } 162 #define ACPI_USE_ALTERNATE_PROTOTYPE_AcpiOsAllocateZeroed 163 #define USE_NATIVE_ALLOCATE_ZEROED 164 165 static inline void 166 AcpiOsFree ( 167 void *Memory) 168 { 169 kfree (Memory); 170 } 171 #define ACPI_USE_ALTERNATE_PROTOTYPE_AcpiOsFree 172 173 static inline void * 174 AcpiOsAcquireObject ( 175 ACPI_CACHE_T *Cache) 176 { 177 return kmem_cache_zalloc (Cache, 178 irqs_disabled () ? GFP_ATOMIC : GFP_KERNEL); 179 } 180 #define ACPI_USE_ALTERNATE_PROTOTYPE_AcpiOsAcquireObject 181 182 static inline ACPI_THREAD_ID 183 AcpiOsGetThreadId ( 184 void) 185 { 186 return (ACPI_THREAD_ID) (unsigned long) current; 187 } 188 #define ACPI_USE_ALTERNATE_PROTOTYPE_AcpiOsGetThreadId 189 190 #ifndef CONFIG_PREEMPT 191 192 /* 193 * Used within ACPICA to show where it is safe to preempt execution 194 * when CONFIG_PREEMPT=n 195 */ 196 #define ACPI_PREEMPTION_POINT() \ 197 do { \ 198 if (!irqs_disabled()) \ 199 cond_resched(); \ 200 } while (0) 201 202 #endif 203 204 /* 205 * When lockdep is enabled, the spin_lock_init() macro stringifies it's 206 * argument and uses that as a name for the lock in debugging. 207 * By executing spin_lock_init() in a macro the key changes from "lock" for 208 * all locks to the name of the argument of acpi_os_create_lock(), which 209 * prevents lockdep from reporting false positives for ACPICA locks. 210 */ 211 #define AcpiOsCreateLock(__Handle) \ 212 ({ \ 213 spinlock_t *Lock = ACPI_ALLOCATE(sizeof(*Lock)); \ 214 if (Lock) { \ 215 *(__Handle) = Lock; \ 216 spin_lock_init(*(__Handle)); \ 217 } \ 218 Lock ? AE_OK : AE_NO_MEMORY; \ 219 }) 220 #define ACPI_USE_ALTERNATE_PROTOTYPE_AcpiOsCreateLock 221 222 void __iomem * 223 AcpiOsMapMemory ( 224 ACPI_PHYSICAL_ADDRESS Where, 225 ACPI_SIZE Length); 226 #define ACPI_USE_ALTERNATE_PROTOTYPE_AcpiOsMapMemory 227 228 void 229 AcpiOsUnmapMemory ( 230 void __iomem *LogicalAddress, 231 ACPI_SIZE Size); 232 #define ACPI_USE_ALTERNATE_PROTOTYPE_AcpiOsUnmapMemory 233 234 /* 235 * OSL interfaces used by debugger/disassembler 236 */ 237 #define ACPI_USE_ALTERNATE_PROTOTYPE_AcpiOsReadable 238 #define ACPI_USE_ALTERNATE_PROTOTYPE_AcpiOsWritable 239 240 /* 241 * OSL interfaces used by utilities 242 */ 243 #define ACPI_USE_ALTERNATE_PROTOTYPE_AcpiOsRedirectOutput 244 #define ACPI_USE_ALTERNATE_PROTOTYPE_AcpiOsGetLine 245 #define ACPI_USE_ALTERNATE_PROTOTYPE_AcpiOsGetTableByName 246 #define ACPI_USE_ALTERNATE_PROTOTYPE_AcpiOsGetTableByIndex 247 #define ACPI_USE_ALTERNATE_PROTOTYPE_AcpiOsGetTableByAddress 248 #define ACPI_USE_ALTERNATE_PROTOTYPE_AcpiOsOpenDirectory 249 #define ACPI_USE_ALTERNATE_PROTOTYPE_AcpiOsGetNextFilename 250 #define ACPI_USE_ALTERNATE_PROTOTYPE_AcpiOsCloseDirectory 251 252 /* 253 * OSL interfaces added by Linux 254 */ 255 void 256 EarlyAcpiOsUnmapMemory ( 257 void __iomem *Virt, 258 ACPI_SIZE Size); 259 260 ACPI_STATUS 261 AcpiOsHotplugExecute ( 262 ACPI_OSD_EXEC_CALLBACK Function, 263 void *Context); 264 265 #endif /* __KERNEL__ */ 266 267 #endif /* __ACLINUX_H__ */ 268