Home | History | Annotate | Line # | Download | only in platform
aclinux.h revision 1.1.1.2.4.2 
      1 /******************************************************************************
      2  *
      3  * Name: aclinux.h - OS specific defines, etc. for Linux
      4  *
      5  *****************************************************************************/
      6 
      7 /*
      8  * Copyright (C) 2000 - 2011, 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/module.h>
     59 #include <linux/ctype.h>
     60 #include <linux/sched.h>
     61 #include <asm/system.h>
     62 #include <asm/atomic.h>
     63 #include <asm/div64.h>
     64 #include <asm/acpi.h>
     65 #include <linux/slab.h>
     66 #include <linux/spinlock_types.h>
     67 #include <asm/current.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__)
     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  * Overrides for in-kernel ACPICA
    117  */
    118 static inline acpi_thread_id acpi_os_get_thread_id(void)
    119 {
    120     return current;
    121 }
    122 
    123 /*
    124  * The irqs_disabled() check is for resume from RAM.
    125  * Interrupts are off during resume, just like they are for boot.
    126  * However, boot has  (system_state != SYSTEM_RUNNING)
    127  * to quiet __might_sleep() in kmalloc() and resume does not.
    128  */
    129 #include <acpi/actypes.h>
    130 static inline void *acpi_os_allocate(acpi_size size)
    131 {
    132     return kmalloc(size, irqs_disabled() ? GFP_ATOMIC : GFP_KERNEL);
    133 }
    134 
    135 static inline void *acpi_os_allocate_zeroed(acpi_size size)
    136 {
    137     return kzalloc(size, irqs_disabled() ? GFP_ATOMIC : GFP_KERNEL);
    138 }
    139 
    140 static inline void *acpi_os_acquire_object(acpi_cache_t * cache)
    141 {
    142     return kmem_cache_zalloc(cache,
    143         irqs_disabled() ? GFP_ATOMIC : GFP_KERNEL);
    144 }
    145 
    146 #define ACPI_ALLOCATE(a)        acpi_os_allocate(a)
    147 #define ACPI_ALLOCATE_ZEROED(a) acpi_os_allocate_zeroed(a)
    148 #define ACPI_FREE(a)            kfree(a)
    149 
    150 /* Used within ACPICA to show where it is safe to preempt execution */
    151 
    152 #define ACPI_PREEMPTION_POINT() \
    153     do { \
    154         if (!irqs_disabled()) \
    155             cond_resched(); \
    156     } while (0)
    157 
    158 #endif /* __KERNEL__ */
    159 
    160 #endif /* __ACLINUX_H__ */
    161