1 /****************************************************************************** 2 * 3 * Name: aclinux.h - OS specific defines, etc. 4 * 5 *****************************************************************************/ 6 7 /* 8 * Copyright (C) 2000 - 2008, 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 #define ACPI_USE_SYSTEM_CLIBRARY 48 #define ACPI_USE_DO_WHILE_0 49 #define ACPI_MUTEX_TYPE ACPI_BINARY_SEMAPHORE 50 51 #ifdef __KERNEL__ 52 53 #include <linux/string.h> 54 #include <linux/kernel.h> 55 #include <linux/module.h> 56 #include <linux/ctype.h> 57 #include <linux/sched.h> 58 #include <asm/system.h> 59 #include <asm/atomic.h> 60 #include <asm/div64.h> 61 #include <asm/acpi.h> 62 #include <linux/slab.h> 63 #include <linux/spinlock_types.h> 64 #include <asm/current.h> 65 66 /* Host-dependent types and defines */ 67 68 #define ACPI_MACHINE_WIDTH BITS_PER_LONG 69 #define acpi_cache_t struct kmem_cache 70 #define acpi_spinlock spinlock_t * 71 #define ACPI_EXPORT_SYMBOL(symbol) EXPORT_SYMBOL(symbol); 72 #define strtoul simple_strtoul 73 74 #else /* !__KERNEL__ */ 75 76 #include <stdarg.h> 77 #include <string.h> 78 #include <stdlib.h> 79 #include <ctype.h> 80 #include <unistd.h> 81 82 #if defined(__ia64__) || defined(__x86_64__) 83 #define ACPI_MACHINE_WIDTH 64 84 #define COMPILER_DEPENDENT_INT64 long 85 #define COMPILER_DEPENDENT_UINT64 unsigned long 86 #else 87 #define ACPI_MACHINE_WIDTH 32 88 #define COMPILER_DEPENDENT_INT64 long long 89 #define COMPILER_DEPENDENT_UINT64 unsigned long long 90 #define ACPI_USE_NATIVE_DIVIDE 91 #endif 92 93 #ifndef __cdecl 94 #define __cdecl 95 #endif 96 97 #define ACPI_FLUSH_CPU_CACHE() 98 #endif /* __KERNEL__ */ 99 100 /* Linux uses GCC */ 101 102 #include "acgcc.h" 103 104 #define acpi_cpu_flags unsigned long 105 106 #define acpi_thread_id struct task_struct * 107 108 static inline acpi_thread_id acpi_os_get_thread_id(void) 109 { 110 return current; 111 } 112 113 /* 114 * The irqs_disabled() check is for resume from RAM. 115 * Interrupts are off during resume, just like they are for boot. 116 * However, boot has (system_state != SYSTEM_RUNNING) 117 * to quiet __might_sleep() in kmalloc() and resume does not. 118 */ 119 #include <acpi/actypes.h> 120 static inline void *acpi_os_allocate(acpi_size size) 121 { 122 return kmalloc(size, irqs_disabled()? GFP_ATOMIC : GFP_KERNEL); 123 } 124 static inline void *acpi_os_allocate_zeroed(acpi_size size) 125 { 126 return kzalloc(size, irqs_disabled()? GFP_ATOMIC : GFP_KERNEL); 127 } 128 129 static inline void *acpi_os_acquire_object(acpi_cache_t * cache) 130 { 131 return kmem_cache_zalloc(cache, 132 irqs_disabled()? GFP_ATOMIC : GFP_KERNEL); 133 } 134 135 #define ACPI_ALLOCATE(a) acpi_os_allocate(a) 136 #define ACPI_ALLOCATE_ZEROED(a) acpi_os_allocate_zeroed(a) 137 #define ACPI_FREE(a) kfree(a) 138 139 /* 140 * We need to show where it is safe to preempt execution of ACPICA 141 */ 142 #define ACPI_PREEMPTION_POINT() \ 143 do { \ 144 if (!irqs_disabled()) \ 145 cond_resched(); \ 146 } while (0) 147 148 #endif /* __ACLINUX_H__ */ 149