arch/x86/include/sys/acpi/platform/acwin.h

   1 /******************************************************************************
   2  *
   3  * Name: acwin.h - OS specific defines, etc.
   4  *
   5  *****************************************************************************/
   6
   7 /*
   8  * Copyright (C) 2000 - 2016, 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 __ACWIN_H__
  45 #define __ACWIN_H__
  46
  47 /*! [Begin] no source code translation (Keep the include) */
  48
  49 /* Windows uses VC */
  50 #ifdef _MSC_VER
  51 #include "acmsvc.h"
  52 #endif
  53 /*! [End] no source code translation !*/
  54
  55 #define ACPI_MACHINE_WIDTH      32
  56
  57 #define ACPI_USE_STANDARD_HEADERS
  58
  59 #ifdef ACPI_DEFINE_ALTERNATE_TYPES
  60 /*
  61  * Types used only in (Linux) translated source, defined here to enable
  62  * cross-platform compilation (i.e., generate the Linux code on Windows,
  63  * for test purposes only)
  64  */
  65 typedef int                             s32;
  66 typedef unsigned char                   u8;
  67 typedef unsigned short                  u16;
  68 typedef unsigned int                    u32;
  69 typedef COMPILER_DEPENDENT_UINT64       u64;
  70 #endif
  71
  72
  73 /*
  74  * Handle platform- and compiler-specific assembly language differences.
  75  *
  76  * Notes:
  77  * 1) Interrupt 3 is used to break into a debugger
  78  * 2) Interrupts are turned off during ACPI register setup
  79  */
  80
  81 /*! [Begin] no source code translation  */
  82
  83 #ifdef ACPI_APPLICATION
  84 #define ACPI_FLUSH_CPU_CACHE()
  85 #else
  86 #define ACPI_FLUSH_CPU_CACHE()  __asm {WBINVD}
  87 #endif
  88
  89 #ifdef _DEBUG
  90 #define ACPI_SIMPLE_RETURN_MACROS
  91 #endif
  92
  93 /*! [End] no source code translation !*/
  94
  95 /*
  96  * Global Lock acquire/release code
  97  *
  98  * Note: Handles case where the FACS pointer is null
  99  */
 100 #define ACPI_ACQUIRE_GLOBAL_LOCK(FacsPtr, Acq)  __asm \
 101 {                                                   \
 102         __asm mov           eax, 0xFF               \
 103         __asm mov           ecx, FacsPtr            \
 104         __asm or            ecx, ecx                \
 105         __asm jz            exit_acq                \
 106         __asm lea           ecx, [ecx].GlobalLock   \
 107                                                     \
 108         __asm acq10:                                \
 109         __asm mov           eax, [ecx]              \
 110         __asm mov           edx, eax                \
 111         __asm and           edx, 0xFFFFFFFE         \
 112         __asm bts           edx, 1                  \
 113         __asm adc           edx, 0                  \
 114         __asm lock cmpxchg  dword ptr [ecx], edx    \
 115         __asm jnz           acq10                   \
 116                                                     \
 117         __asm cmp           dl, 3                   \
 118         __asm sbb           eax, eax                \
 119                                                     \
 120         __asm exit_acq:                             \
 121         __asm mov           Acq, al                 \
 122 }
 123
 124 #define ACPI_RELEASE_GLOBAL_LOCK(FacsPtr, Pnd) __asm \
 125 {                                                   \
 126         __asm xor           eax, eax                \
 127         __asm mov           ecx, FacsPtr            \
 128         __asm or            ecx, ecx                \
 129         __asm jz            exit_rel                \
 130         __asm lea           ecx, [ecx].GlobalLock   \
 131                                                     \
 132         __asm Rel10:                                \
 133         __asm mov           eax, [ecx]              \
 134         __asm mov           edx, eax                \
 135         __asm and           edx, 0xFFFFFFFC         \
 136         __asm lock cmpxchg  dword ptr [ecx], edx    \
 137         __asm jnz           Rel10                   \
 138                                                     \
 139         __asm cmp           dl, 3                   \
 140         __asm and           eax, 1                  \
 141                                                     \
 142         __asm exit_rel:                             \
 143         __asm mov           Pnd, al                 \
 144 }
 145
 146 #endif /* __ACWIN_H__ */