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      1 /******************************************************************************
      2  *
      3  * Name: acefi.h - OS specific defines, etc.
      4  *
      5  *****************************************************************************/
      6 
      7 /******************************************************************************
      8  *
      9  * 1. Copyright Notice
     10  *
     11  * Some or all of this work - Copyright (c) 1999 - 2025, 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  * Alternatively, you may choose to be licensed under the terms of the
    117  * following license:
    118  *
    119  * Redistribution and use in source and binary forms, with or without
    120  * modification, are permitted provided that the following conditions
    121  * are met:
    122  * 1. Redistributions of source code must retain the above copyright
    123  *    notice, this list of conditions, and the following disclaimer,
    124  *    without modification.
    125  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
    126  *    substantially similar to the "NO WARRANTY" disclaimer below
    127  *    ("Disclaimer") and any redistribution must be conditioned upon
    128  *    including a substantially similar Disclaimer requirement for further
    129  *    binary redistribution.
    130  * 3. Neither the names of the above-listed copyright holders nor the names
    131  *    of any contributors may be used to endorse or promote products derived
    132  *    from this software without specific prior written permission.
    133  *
    134  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
    135  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
    136  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
    137  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
    138  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
    139  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
    140  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
    141  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
    142  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
    143  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
    144  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
    145  *
    146  * Alternatively, you may choose to be licensed under the terms of the
    147  * GNU General Public License ("GPL") version 2 as published by the Free
    148  * Software Foundation.
    149  *
    150  *****************************************************************************/
    151 
    152 #ifndef __ACEFI_H__
    153 #define __ACEFI_H__
    154 
    155 /*
    156  * Single threaded environment where Mutex/Event/Sleep are fake. This model is
    157  * sufficient for pre-boot AcpiExec.
    158  */
    159 #ifndef DEBUGGER_THREADING
    160 #define DEBUGGER_THREADING          DEBUGGER_SINGLE_THREADED
    161 #endif /* !DEBUGGER_THREADING */
    162 
    163 /* EDK2 EFI environment */
    164 
    165 #if defined(_EDK2_EFI)
    166 
    167 #ifdef USE_STDLIB
    168 #define ACPI_USE_STANDARD_HEADERS
    169 #define ACPI_USE_SYSTEM_CLIBRARY
    170 #define ACPI_USE_NATIVE_DIVIDE
    171 #define ACPI_USE_NATIVE_MATH64
    172 #endif
    173 
    174 #endif
    175 
    176 #if defined(__x86_64__)
    177 #if defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 7))
    178 #define USE_MS_ABI 1
    179 #endif
    180 #endif
    181 
    182 #ifdef _MSC_EXTENSIONS
    183 #define ACPI_EFI_API __cdecl
    184 #elif USE_MS_ABI
    185 #define ACPI_EFI_API __attribute__((ms_abi))
    186 #else
    187 #define ACPI_EFI_API
    188 #endif
    189 
    190 #define VOID        void
    191 
    192 #if defined(__ia64__) || defined(__x86_64__)
    193 
    194 #define ACPI_MACHINE_WIDTH          64
    195 
    196 #if defined(__x86_64__)
    197 
    198 /* for x86_64, EFI_FUNCTION_WRAPPER must be defined */
    199 
    200 #ifndef USE_MS_ABI
    201 #define USE_EFI_FUNCTION_WRAPPER
    202 #endif
    203 
    204 #ifdef _MSC_EXTENSIONS
    205 #pragma warning ( disable : 4731 )  /* Suppress warnings about modification of EBP */
    206 #endif
    207 
    208 #endif
    209 
    210 #ifndef USE_STDLIB
    211 #define UINTN       uint64_t
    212 #define INTN        int64_t
    213 #endif
    214 
    215 #define ACPI_EFI_ERR(a)             (0x8000000000000000 | a)
    216 
    217 #else
    218 
    219 #define ACPI_MACHINE_WIDTH          32
    220 
    221 #ifndef USE_STDLIB
    222 #define UINTN       uint32_t
    223 #define INTN        int32_t
    224 #endif
    225 
    226 #define ACPI_EFI_ERR(a)             (0x80000000 | a)
    227 
    228 #endif
    229 
    230 #define CHAR16      uint16_t
    231 
    232 #ifdef USE_EFI_FUNCTION_WRAPPER
    233 #define __VA_NARG__(...)                        \
    234   __VA_NARG_(_0, ## __VA_ARGS__, __RSEQ_N())
    235 #define __VA_NARG_(...)                         \
    236   __VA_ARG_N(__VA_ARGS__)
    237 #define __VA_ARG_N(                             \
    238   _0,_1,_2,_3,_4,_5,_6,_7,_8,_9,_10,N,...) N
    239 #define __RSEQ_N()                              \
    240   10, 9,  8,  7,  6,  5,  4,  3,  2,  1,  0
    241 
    242 #define __VA_ARG_NSUFFIX__(prefix,...)                  \
    243   __VA_ARG_NSUFFIX_N(prefix, __VA_NARG__(__VA_ARGS__))
    244 #define __VA_ARG_NSUFFIX_N(prefix,nargs)        \
    245   __VA_ARG_NSUFFIX_N_(prefix, nargs)
    246 #define __VA_ARG_NSUFFIX_N_(prefix,nargs)       \
    247   prefix ## nargs
    248 
    249 /* Prototypes of EFI cdecl -> stdcall trampolines */
    250 
    251 UINT64 efi_call0(void *func);
    252 UINT64 efi_call1(void *func, UINT64 arg1);
    253 UINT64 efi_call2(void *func, UINT64 arg1, UINT64 arg2);
    254 UINT64 efi_call3(void *func, UINT64 arg1, UINT64 arg2, UINT64 arg3);
    255 UINT64 efi_call4(void *func, UINT64 arg1, UINT64 arg2, UINT64 arg3,
    256                  UINT64 arg4);
    257 UINT64 efi_call5(void *func, UINT64 arg1, UINT64 arg2, UINT64 arg3,
    258                  UINT64 arg4, UINT64 arg5);
    259 UINT64 efi_call6(void *func, UINT64 arg1, UINT64 arg2, UINT64 arg3,
    260                  UINT64 arg4, UINT64 arg5, UINT64 arg6);
    261 UINT64 efi_call7(void *func, UINT64 arg1, UINT64 arg2, UINT64 arg3,
    262                  UINT64 arg4, UINT64 arg5, UINT64 arg6, UINT64 arg7);
    263 UINT64 efi_call8(void *func, UINT64 arg1, UINT64 arg2, UINT64 arg3,
    264                  UINT64 arg4, UINT64 arg5, UINT64 arg6, UINT64 arg7,
    265                  UINT64 arg8);
    266 UINT64 efi_call9(void *func, UINT64 arg1, UINT64 arg2, UINT64 arg3,
    267                  UINT64 arg4, UINT64 arg5, UINT64 arg6, UINT64 arg7,
    268                  UINT64 arg8, UINT64 arg9);
    269 UINT64 efi_call10(void *func, UINT64 arg1, UINT64 arg2, UINT64 arg3,
    270                   UINT64 arg4, UINT64 arg5, UINT64 arg6, UINT64 arg7,
    271                   UINT64 arg8, UINT64 arg9, UINT64 arg10);
    272 
    273 /* Front-ends to efi_callX to avoid compiler warnings */
    274 
    275 #define _cast64_efi_call0(f) \
    276   efi_call0(f)
    277 #define _cast64_efi_call1(f,a1) \
    278   efi_call1(f, (UINT64)(a1))
    279 #define _cast64_efi_call2(f,a1,a2) \
    280   efi_call2(f, (UINT64)(a1), (UINT64)(a2))
    281 #define _cast64_efi_call3(f,a1,a2,a3) \
    282   efi_call3(f, (UINT64)(a1), (UINT64)(a2), (UINT64)(a3))
    283 #define _cast64_efi_call4(f,a1,a2,a3,a4) \
    284   efi_call4(f, (UINT64)(a1), (UINT64)(a2), (UINT64)(a3), (UINT64)(a4))
    285 #define _cast64_efi_call5(f,a1,a2,a3,a4,a5) \
    286   efi_call5(f, (UINT64)(a1), (UINT64)(a2), (UINT64)(a3), (UINT64)(a4), \
    287             (UINT64)(a5))
    288 #define _cast64_efi_call6(f,a1,a2,a3,a4,a5,a6) \
    289   efi_call6(f, (UINT64)(a1), (UINT64)(a2), (UINT64)(a3), (UINT64)(a4), \
    290             (UINT64)(a5), (UINT64)(a6))
    291 #define _cast64_efi_call7(f,a1,a2,a3,a4,a5,a6,a7) \
    292   efi_call7(f, (UINT64)(a1), (UINT64)(a2), (UINT64)(a3), (UINT64)(a4), \
    293             (UINT64)(a5), (UINT64)(a6), (UINT64)(a7))
    294 #define _cast64_efi_call8(f,a1,a2,a3,a4,a5,a6,a7,a8) \
    295   efi_call8(f, (UINT64)(a1), (UINT64)(a2), (UINT64)(a3), (UINT64)(a4), \
    296             (UINT64)(a5), (UINT64)(a6), (UINT64)(a7), (UINT64)(a8))
    297 #define _cast64_efi_call9(f,a1,a2,a3,a4,a5,a6,a7,a8,a9) \
    298   efi_call9(f, (UINT64)(a1), (UINT64)(a2), (UINT64)(a3), (UINT64)(a4), \
    299             (UINT64)(a5), (UINT64)(a6), (UINT64)(a7), (UINT64)(a8), \
    300             (UINT64)(a9))
    301 #define _cast64_efi_call10(f,a1,a2,a3,a4,a5,a6,a7,a8,a9,a10) \
    302   efi_call10(f, (UINT64)(a1), (UINT64)(a2), (UINT64)(a3), (UINT64)(a4), \
    303              (UINT64)(a5), (UINT64)(a6), (UINT64)(a7), (UINT64)(a8), \
    304              (UINT64)(a9), (UINT64)(a10))
    305 
    306 /* main wrapper (va_num ignored) */
    307 
    308 #define uefi_call_wrapper(func,va_num,...)                        \
    309   __VA_ARG_NSUFFIX__(_cast64_efi_call, __VA_ARGS__) (func , ##__VA_ARGS__)
    310 
    311 #else
    312 
    313 #define uefi_call_wrapper(func, va_num, ...) func(__VA_ARGS__)
    314 
    315 #endif
    316 
    317 /* AED EFI definitions */
    318 
    319 #if defined(_AED_EFI)
    320 
    321 /* _int64 works for both IA32 and IA64 */
    322 
    323 #define COMPILER_DEPENDENT_INT64   __int64
    324 #define COMPILER_DEPENDENT_UINT64  unsigned __int64
    325 
    326 /*
    327  * Calling conventions:
    328  *
    329  * ACPI_SYSTEM_XFACE        - Interfaces to host OS (handlers, threads)
    330  * ACPI_EXTERNAL_XFACE      - External ACPI interfaces
    331  * ACPI_INTERNAL_XFACE      - Internal ACPI interfaces
    332  * ACPI_INTERNAL_VAR_XFACE  - Internal variable-parameter list interfaces
    333  */
    334 #define ACPI_SYSTEM_XFACE
    335 #define ACPI_EXTERNAL_XFACE
    336 #define ACPI_INTERNAL_XFACE
    337 #define ACPI_INTERNAL_VAR_XFACE
    338 
    339 /* warn C4142: redefinition of type */
    340 
    341 #pragma warning(disable:4142)
    342 
    343 #endif
    344 
    345 
    346 /* EFI math64 definitions */
    347 
    348 #if defined(_GNU_EFI) || defined(_EDK2_EFI)
    349 /*
    350  * Math helpers, GNU EFI provided a platform independent 64-bit math
    351  * support.
    352  */
    353 #ifndef ACPI_DIV_64_BY_32
    354 #define ACPI_DIV_64_BY_32(n_hi, n_lo, d32, q32, r32)         \
    355     do {                                                     \
    356         UINT64 __n = ((UINT64) n_hi) << 32 | (n_lo);         \
    357         (q32) = (UINT32) DivU64x32 ((__n), (d32), &(r32));   \
    358     } while (0)
    359 #endif
    360 
    361 #ifndef ACPI_MUL_64_BY_32
    362 #define ACPI_MUL_64_BY_32(n_hi, n_lo, m32, p32, c32) \
    363     do {                                             \
    364         UINT64 __n = ((UINT64) n_hi) << 32 | (n_lo); \
    365         UINT64 __p = MultU64x32 (__n, (m32));        \
    366         (p32) = (UINT32) __p;                        \
    367         (c32) = (UINT32) (__p >> 32);                \
    368     } while (0)
    369 #endif
    370 
    371 #ifndef ACPI_SHIFT_LEFT_64_by_32
    372 #define ACPI_SHIFT_LEFT_64_BY_32(n_hi, n_lo, s32)    \
    373     do {                                             \
    374         UINT64 __n = ((UINT64) n_hi) << 32 | (n_lo); \
    375         UINT64 __r = LShiftU64 (__n, (s32));         \
    376         (n_lo) = (UINT32) __r;                       \
    377         (n_hi) = (UINT32) (__r >> 32);               \
    378     } while (0)
    379 #endif
    380 
    381 #ifndef ACPI_SHIFT_RIGHT_64_BY_32
    382 #define ACPI_SHIFT_RIGHT_64_BY_32(n_hi, n_lo, s32)   \
    383     do {                                             \
    384         UINT64 __n = ((UINT64) n_hi) << 32 | (n_lo); \
    385         UINT64 __r = RShiftU64 (__n, (s32));         \
    386         (n_lo) = (UINT32) __r;                       \
    387         (n_hi) = (UINT32) (__r >> 32);               \
    388     } while (0)
    389 #endif
    390 
    391 #ifndef ACPI_SHIFT_RIGHT_64
    392 #define ACPI_SHIFT_RIGHT_64(n_hi, n_lo) \
    393     do {                                \
    394         (n_lo) >>= 1;                   \
    395         (n_lo) |= (((n_hi) & 1) << 31); \
    396         (n_hi) >>= 1;                   \
    397     } while (0)
    398 #endif
    399 #endif
    400 
    401 struct _ACPI_SIMPLE_TEXT_OUTPUT_INTERFACE;
    402 struct _ACPI_SIMPLE_INPUT_INTERFACE;
    403 struct _ACPI_EFI_FILE_IO_INTERFACE;
    404 struct _ACPI_EFI_FILE_HANDLE;
    405 struct _ACPI_EFI_BOOT_SERVICES;
    406 struct _ACPI_EFI_RUNTIME_SERVICES;
    407 struct _ACPI_EFI_SYSTEM_TABLE;
    408 struct _ACPI_EFI_PCI_IO;
    409 
    410 extern struct _ACPI_EFI_SYSTEM_TABLE        *ST;
    411 extern struct _ACPI_EFI_BOOT_SERVICES       *BS;
    412 extern struct _ACPI_EFI_RUNTIME_SERVICES    *RT;
    413 
    414 #ifndef USE_STDLIB
    415 typedef union acpi_efi_file ACPI_EFI_FILE;
    416 #define FILE                ACPI_EFI_FILE
    417 
    418 extern FILE                 *stdin;
    419 extern FILE                 *stdout;
    420 extern FILE                 *stderr;
    421 #endif
    422 
    423 #endif /* __ACEFI_H__ */
    424