reactos/drivers/bus/acpi/acpica/include/platform/acgcc.h

   1 /******************************************************************************
   2  *
   3  * Name: acgcc.h - GCC specific defines, etc.
   4  *
   5  *****************************************************************************/
   6
   7 /******************************************************************************
   8  *
   9  * 1. Copyright Notice
  10  *
  11  * Some or all of this work - Copyright (c) 1999 - 2014, Intel Corp.
  12  * All rights reserved.
  13  *
  14  * 2. License
  15  *
  16  * 2.1. This is your license from Intel Corp. under its intellectual property
  17  * rights. You may have additional license terms from the party that provided
  18  * you this software, covering your right to use that party's intellectual
  19  * property rights.
  20  *
  21  * 2.2. Intel grants, free of charge, to any person ("Licensee") obtaining a
  22  * copy of the source code appearing in this file ("Covered Code") an
  23  * irrevocable, perpetual, worldwide license under Intel's copyrights in the
  24  * base code distributed originally by Intel ("Original Intel Code") to copy,
  25  * make derivatives, distribute, use and display any portion of the Covered
  26  * Code in any form, with the right to sublicense such rights; and
  27  *
  28  * 2.3. Intel grants Licensee a non-exclusive and non-transferable patent
  29  * license (with the right to sublicense), under only those claims of Intel
  30  * patents that are infringed by the Original Intel Code, to make, use, sell,
  31  * offer to sell, and import the Covered Code and derivative works thereof
  32  * solely to the minimum extent necessary to exercise the above copyright
  33  * license, and in no event shall the patent license extend to any additions
  34  * to or modifications of the Original Intel Code. No other license or right
  35  * is granted directly or by implication, estoppel or otherwise;
  36  *
  37  * The above copyright and patent license is granted only if the following
  38  * conditions are met:
  39  *
  40  * 3. Conditions
  41  *
  42  * 3.1. Redistribution of Source with Rights to Further Distribute Source.
  43  * Redistribution of source code of any substantial portion of the Covered
  44  * Code or modification with rights to further distribute source must include
  45  * the above Copyright Notice, the above License, this list of Conditions,
  46  * and the following Disclaimer and Export Compliance provision. In addition,
  47  * Licensee must cause all Covered Code to which Licensee contributes to
  48  * contain a file documenting the changes Licensee made to create that Covered
  49  * Code and the date of any change. Licensee must include in that file the
  50  * documentation of any changes made by any predecessor Licensee. Licensee
  51  * must include a prominent statement that the modification is derived,
  52  * directly or indirectly, from Original Intel Code.
  53  *
  54  * 3.2. Redistribution of Source with no Rights to Further Distribute Source.
  55  * Redistribution of source code of any substantial portion of the Covered
  56  * Code or modification without rights to further distribute source must
  57  * include the following Disclaimer and Export Compliance provision in the
  58  * documentation and/or other materials provided with distribution. In
  59  * addition, Licensee may not authorize further sublicense of source of any
  60  * portion of the Covered Code, and must include terms to the effect that the
  61  * license from Licensee to its licensee is limited to the intellectual
  62  * property embodied in the software Licensee provides to its licensee, and
  63  * not to intellectual property embodied in modifications its licensee may
  64  * make.
  65  *
  66  * 3.3. Redistribution of Executable. Redistribution in executable form of any
  67  * substantial portion of the Covered Code or modification must reproduce the
  68  * above Copyright Notice, and the following Disclaimer and Export Compliance
  69  * provision in the documentation and/or other materials provided with the
  70  * distribution.
  71  *
  72  * 3.4. Intel retains all right, title, and interest in and to the Original
  73  * Intel Code.
  74  *
  75  * 3.5. Neither the name Intel nor any other trademark owned or controlled by
  76  * Intel shall be used in advertising or otherwise to promote the sale, use or
  77  * other dealings in products derived from or relating to the Covered Code
  78  * without prior written authorization from Intel.
  79  *
  80  * 4. Disclaimer and Export Compliance
  81  *
  82  * 4.1. INTEL MAKES NO WARRANTY OF ANY KIND REGARDING ANY SOFTWARE PROVIDED
  83  * HERE. ANY SOFTWARE ORIGINATING FROM INTEL OR DERIVED FROM INTEL SOFTWARE
  84  * IS PROVIDED "AS IS," AND INTEL WILL NOT PROVIDE ANY SUPPORT, ASSISTANCE,
  85  * INSTALLATION, TRAINING OR OTHER SERVICES. INTEL WILL NOT PROVIDE ANY
  86  * UPDATES, ENHANCEMENTS OR EXTENSIONS. INTEL SPECIFICALLY DISCLAIMS ANY
  87  * IMPLIED WARRANTIES OF MERCHANTABILITY, NONINFRINGEMENT AND FITNESS FOR A
  88  * PARTICULAR PURPOSE.
  89  *
  90  * 4.2. IN NO EVENT SHALL INTEL HAVE ANY LIABILITY TO LICENSEE, ITS LICENSEES
  91  * OR ANY OTHER THIRD PARTY, FOR ANY LOST PROFITS, LOST DATA, LOSS OF USE OR
  92  * COSTS OF PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, OR FOR ANY INDIRECT,
  93  * SPECIAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THIS AGREEMENT, UNDER ANY
  94  * CAUSE OF ACTION OR THEORY OF LIABILITY, AND IRRESPECTIVE OF WHETHER INTEL
  95  * HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES. THESE LIMITATIONS
  96  * SHALL APPLY NOTWITHSTANDING THE FAILURE OF THE ESSENTIAL PURPOSE OF ANY
  97  * LIMITED REMEDY.
  98  *
  99  * 4.3. Licensee shall not export, either directly or indirectly, any of this
 100  * software or system incorporating such software without first obtaining any
 101  * required license or other approval from the U. S. Department of Commerce or
 102  * any other agency or department of the United States Government. In the
 103  * event Licensee exports any such software from the United States or
 104  * re-exports any such software from a foreign destination, Licensee shall
 105  * ensure that the distribution and export/re-export of the software is in
 106  * compliance with all laws, regulations, orders, or other restrictions of the
 107  * U.S. Export Administration Regulations. Licensee agrees that neither it nor
 108  * any of its subsidiaries will export/re-export any technical data, process,
 109  * software, or service, directly or indirectly, to any country for which the
 110  * United States government or any agency thereof requires an export license,
 111  * other governmental approval, or letter of assurance, without first obtaining
 112  * such license, approval or letter.
 113  *
 114  *****************************************************************************/
 115
 116 #ifndef __ACGCC_H__
 117 #define __ACGCC_H__
 118
 119 #define ACPI_INLINE             __inline__
 120
 121 /* Function name is used for debug output. Non-ANSI, compiler-dependent */
 122
 123 #define ACPI_GET_FUNCTION_NAME          __func__
 124
 125 /*
 126  * This macro is used to tag functions as "printf-like" because
 127  * some compilers (like GCC) can catch printf format string problems.
 128  */
 129 #define ACPI_PRINTF_LIKE(c) __attribute__ ((__format__ (__printf__, c, c+1)))
 130
 131 /*
 132  * Some compilers complain about unused variables. Sometimes we don't want to
 133  * use all the variables (for example, _AcpiModuleName). This allows us
 134  * to tell the compiler warning in a per-variable manner that a variable
 135  * is unused.
 136  */
 137 #define ACPI_UNUSED_VAR __attribute__ ((unused))
 138
 139 /*
 140  * Some versions of gcc implement strchr() with a buggy macro. So,
 141  * undef it here. Prevents error messages of this form (usually from the
 142  * file getopt.c):
 143  *
 144  * error: logical '&&' with non-zero constant will always evaluate as true
 145  */
 146 #ifdef strchr
 147 #undef strchr
 148 #endif
 149
 150 #ifdef __REACTOS__
 151 /* Flush CPU cache - used when going to sleep. Wbinvd or similar. */
 152
 153 #ifdef ACPI_APPLICATION
 154 #define ACPI_FLUSH_CPU_CACHE()
 155 #else
 156 #define ACPI_FLUSH_CPU_CACHE()  asm ("WBINVD")
 157 #endif
 158
 159 /*
 160  * Global Lock acquire/release code
 161  *
 162  * Note: Handles case where the FACS pointer is null
 163  */
 164 #define ACPI_ACQUIRE_GLOBAL_LOCK(FacsPtr, Acq)              \
 165 do {                                                        \
 166     asm("orl    %2,%2;"                                     \
 167         "jz     2f;"                                        \
 168         "leal   16(%2),%2;"                                 \
 169         "1:"                                                \
 170         "movl   (%2),%%eax;"                                \
 171         "movl   %%eax,%%edx;"                               \
 172         "andl   %3,%%edx;"                                  \
 173         "btsl   $0x1,%%edx;"                                \
 174         "adcl   $0x0,%%edx;"                                \
 175         "lock;  cmpxchgl %%edx,(%2);"                       \
 176         "jnz    1b;"                                        \
 177         "cmpb   $0x3,%%dl;"                                 \
 178         "sbbl   %%eax,%%eax;"                               \
 179         "2:"                                                \
 180         :"=a"(Acq):"a"(0xFF),"c"(FacsPtr),"i"(~1L):"edx");\
 181 } while(0)
 182
 183 #define ACPI_RELEASE_GLOBAL_LOCK(FacsPtr, Acq)              \
 184 do {                                                        \
 185     asm("orl    %2,%2;"                                     \
 186         "jz     2f;"                                        \
 187         "leal   16(%2),%2;"                                 \
 188         "1:"                                                \
 189         "movl  (%2),%%eax;"                                 \
 190         "movl   %%eax,%%edx;"                               \
 191         "andl   %3,%%edx;"                                  \
 192         "lock;  cmpxchgl %%edx,(%2);"                       \
 193         "jnz    1b;"                                        \
 194         "cmpb   $0x3,%%dl;" /* FIXME: this is pointless */  \
 195         "andl   $0x1,%%eax;"                                \
 196         "2:"                                                \
 197         :"=a"(Acq):"a"(0),"c"(FacsPtr),"i"(~3L):"edx");\
 198 } while(0)
 199
 200
 201 /*
 202  * Note: This is also taken from our old adaptation.
 203  *       See acmsvc.h for where it came originally.
 204  */
 205 #define ACPI_DIV_64_BY_32(n_hi, n_lo, d32, q32, r32) \
 206 {                           \
 207     q32 = n_hi / d32;       \
 208     r32 = n_lo / d32;       \
 209 }
 210
 211 #define ACPI_SHIFT_RIGHT_64(n_hi, n_lo) \
 212 {                           \
 213     n_hi >>= 1;    \
 214     n_lo >>= 1;    \
 215 }
 216
 217 #endif /* __REACTOS__ */
 218 #endif /* __ACGCC_H__ */