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 #ifdef __KERNEL__ 54 55 #define ACPI_USE_SYSTEM_INTTYPES 56 57 /* Compile for reduced hardware mode only with this kernel config */ 58 59 #ifdef CONFIG_ACPI_REDUCED_HARDWARE_ONLY 60 #define ACPI_REDUCED_HARDWARE 1 61 #endif 62 63 #include <linux/string.h> 64 #include <linux/kernel.h> 65 #include <linux/ctype.h> 66 #include <linux/sched.h> 67 #include <linux/atomic.h> 68 #include <linux/math64.h> 69 #include <linux/slab.h> 70 #include <linux/spinlock_types.h> 71 #ifdef EXPORT_ACPI_INTERFACES 72 #include <linux/export.h> 73 #endif 74 #include <asm/acpi.h> 75 76 #ifndef CONFIG_ACPI 77 78 /* External globals for __KERNEL__, stubs is needed */ 79 80 #define ACPI_GLOBAL(t,a) 81 #define ACPI_INIT_GLOBAL(t,a,b) 82 83 /* Generating stubs for configurable ACPICA macros */ 84 85 #define ACPI_NO_MEM_ALLOCATIONS 86 87 /* Generating stubs for configurable ACPICA functions */ 88 89 #define ACPI_NO_ERROR_MESSAGES 90 #undef ACPI_DEBUG_OUTPUT 91 92 /* External interface for __KERNEL__, stub is needed */ 93 94 #define ACPI_EXTERNAL_RETURN_STATUS(prototype) \ 95 static ACPI_INLINE prototype {return(AE_NOT_CONFIGURED);} 96 #define ACPI_EXTERNAL_RETURN_OK(prototype) \ 97 static ACPI_INLINE prototype {return(AE_OK);} 98 #define ACPI_EXTERNAL_RETURN_VOID(prototype) \ 99 static ACPI_INLINE prototype {return;} 100 #define ACPI_EXTERNAL_RETURN_UINT32(prototype) \ 101 static ACPI_INLINE prototype {return(0);} 102 #define ACPI_EXTERNAL_RETURN_PTR(prototype) \ 103 static ACPI_INLINE prototype {return(NULL);} 104 105 #endif /* CONFIG_ACPI */ 106 107 /* Host-dependent types and defines for in-kernel ACPICA */ 108 109 #define ACPI_MACHINE_WIDTH BITS_PER_LONG 110 #define ACPI_EXPORT_SYMBOL(symbol) EXPORT_SYMBOL(symbol); 111 #define strtoul simple_strtoul 112 113 #define acpi_cache_t struct kmem_cache 114 #define acpi_spinlock spinlock_t * 115 #define acpi_cpu_flags unsigned long 116 117 #else /* !__KERNEL__ */ 118 119 #include <stdarg.h> 120 #include <string.h> 121 #include <stdlib.h> 122 #include <ctype.h> 123 #include <unistd.h> 124 125 /* Define/disable kernel-specific declarators */ 126 127 #ifndef __init 128 #define __init 129 #endif 130 131 #ifndef __iomem 132 #define __iomem 133 #endif 134 135 /* Host-dependent types and defines for user-space ACPICA */ 136 137 #define ACPI_FLUSH_CPU_CACHE() 138 #define ACPI_CAST_PTHREAD_T(pthread) ((acpi_thread_id) (pthread)) 139 140 #if defined(__ia64__) || defined(__x86_64__) ||\ 141 defined(__aarch64__) || defined(__PPC64__) 142 #define ACPI_MACHINE_WIDTH 64 143 #define COMPILER_DEPENDENT_INT64 long 144 #define COMPILER_DEPENDENT_UINT64 unsigned long 145 #else 146 #define ACPI_MACHINE_WIDTH 32 147 #define COMPILER_DEPENDENT_INT64 long long 148 #define COMPILER_DEPENDENT_UINT64 unsigned long long 149 #define ACPI_USE_NATIVE_DIVIDE 150 #endif 151 152 #ifndef __cdecl 153 #define __cdecl 154 #endif 155 156 #endif /* __KERNEL__ */ 157 158 /* Linux uses GCC */ 159 160 #include <acpi/platform/acgcc.h> 161 162 #ifdef __KERNEL__ 163 164 /* 165 * FIXME: Inclusion of actypes.h 166 * Linux kernel need this before defining inline OSL interfaces as 167 * actypes.h need to be included to find ACPICA type definitions. 168 * Since from ACPICA's perspective, the actypes.h should be included after 169 * acenv.h (aclinux.h), this leads to a inclusion mis-ordering issue. 170 */ 171 #include <acpi/actypes.h> 172 173 /* 174 * Overrides for in-kernel ACPICA 175 */ 176 acpi_status __init acpi_os_initialize(void); 177 #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_initialize 178 179 acpi_status acpi_os_terminate(void); 180 #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_terminate 181 182 /* 183 * Memory allocation/deallocation 184 */ 185 186 /* 187 * The irqs_disabled() check is for resume from RAM. 188 * Interrupts are off during resume, just like they are for boot. 189 * However, boot has (system_state != SYSTEM_RUNNING) 190 * to quiet __might_sleep() in kmalloc() and resume does not. 191 */ 192 static inline void *acpi_os_allocate(acpi_size size) 193 { 194 return kmalloc(size, irqs_disabled()? GFP_ATOMIC : GFP_KERNEL); 195 } 196 197 #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_allocate 198 199 /* Use native linux version of acpi_os_allocate_zeroed */ 200 201 static inline void *acpi_os_allocate_zeroed(acpi_size size) 202 { 203 return kzalloc(size, irqs_disabled()? GFP_ATOMIC : GFP_KERNEL); 204 } 205 206 #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_allocate_zeroed 207 #define USE_NATIVE_ALLOCATE_ZEROED 208 209 static inline void acpi_os_free(void *memory) 210 { 211 kfree(memory); 212 } 213 214 #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_free 215 216 static inline void *acpi_os_acquire_object(acpi_cache_t * cache) 217 { 218 return kmem_cache_zalloc(cache, 219 irqs_disabled()? GFP_ATOMIC : GFP_KERNEL); 220 } 221 222 #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_acquire_object 223 224 static inline acpi_thread_id acpi_os_get_thread_id(void) 225 { 226 return (acpi_thread_id) (unsigned long)current; 227 } 228 229 #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_thread_id 230 231 /* 232 * When lockdep is enabled, the spin_lock_init() macro stringifies it's 233 * argument and uses that as a name for the lock in debugging. 234 * By executing spin_lock_init() in a macro the key changes from "lock" for 235 * all locks to the name of the argument of acpi_os_create_lock(), which 236 * prevents lockdep from reporting false positives for ACPICA locks. 237 */ 238 #define acpi_os_create_lock(__handle) \ 239 ({ \ 240 spinlock_t *lock = ACPI_ALLOCATE(sizeof(*lock)); \ 241 if (lock) { \ 242 *(__handle) = lock; \ 243 spin_lock_init(*(__handle)); \ 244 } \ 245 lock ? AE_OK : AE_NO_MEMORY; \ 246 }) 247 #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_create_lock 248 249 void __iomem *acpi_os_map_memory(acpi_physical_address where, acpi_size length); 250 #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_map_memory 251 252 void acpi_os_unmap_memory(void __iomem * logical_address, acpi_size size); 253 #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_unmap_memory 254 255 /* 256 * OSL interfaces used by debugger/disassembler 257 */ 258 #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_readable 259 #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_writable 260 261 /* 262 * OSL interfaces used by utilities 263 */ 264 #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_redirect_output 265 #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_line 266 #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_table_by_name 267 #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_table_by_index 268 #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_table_by_address 269 #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_open_directory 270 #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_get_next_filename 271 #define ACPI_USE_ALTERNATE_PROTOTYPE_acpi_os_close_directory 272 273 /* 274 * OSL interfaces added by Linux 275 */ 276 void early_acpi_os_unmap_memory(void __iomem * virt, acpi_size size); 277 278 #endif /* __KERNEL__ */ 279 280 #endif /* __ACLINUX_H__ */ 281