acpica_machdep.h revision 100969 
1/*-
2 * Copyright (c) 2002 Mitsuru IWASAKI
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 * $FreeBSD: head/sys/amd64/include/acpica_machdep.h 100969 2002-07-30 19:35:32Z iwasaki $
27 */
28
29/******************************************************************************
30 *
31 * Name: acpica_machdep.h - arch-specific defines, etc.
32 *       $Revision$
33 *
34 *****************************************************************************/
35
36#ifndef __ACPICA_MACHDEP_H__
37#define __ACPICA_MACHDEP_H__
38
39#ifdef _KERNEL
40/*
41 * Calling conventions:
42 *
43 * ACPI_SYSTEM_XFACE        - Interfaces to host OS (handlers, threads)
44 * ACPI_EXTERNAL_XFACE      - External ACPI interfaces
45 * ACPI_INTERNAL_XFACE      - Internal ACPI interfaces
46 * ACPI_INTERNAL_VAR_XFACE  - Internal variable-parameter list interfaces
47 */
48#define ACPI_SYSTEM_XFACE
49#define ACPI_EXTERNAL_XFACE
50#define ACPI_INTERNAL_XFACE
51#define ACPI_INTERNAL_VAR_XFACE
52
53/* Asm macros */
54
55#define ACPI_ASM_MACROS
56#define BREAKPOINT3
57#define ACPI_DISABLE_IRQS() disable_intr()
58#define ACPI_ENABLE_IRQS()  enable_intr()
59
60#define ACPI_FLUSH_CPU_CACHE()	wbinvd()
61
62#define asm         __asm
63/*! [Begin] no source code translation
64 *
65 * A brief explanation as GNU inline assembly is a bit hairy
66 *  %0 is the output parameter in EAX ("=a")
67 *  %1 and %2 are the input parameters in ECX ("c")
68 *  and an immediate value ("i") respectively
69 *  All actual register references are preceded with "%%" as in "%%edx"
70 *  Immediate values in the assembly are preceded by "$" as in "$0x1"
71 *  The final asm parameter are the operation altered non-output registers.
72 */
73#define ACPI_ACQUIRE_GLOBAL_LOCK(GLptr, Acq) \
74    do { \
75        int dummy; \
76        asm("1:     movl (%1),%%eax;" \
77            "movl   %%eax,%%edx;" \
78            "andl   %2,%%edx;" \
79            "btsl   $0x1,%%edx;" \
80            "adcl   $0x0,%%edx;" \
81            "lock;  cmpxchgl %%edx,(%1);" \
82            "jnz    1b;" \
83            "cmpb   $0x3,%%dl;" \
84            "sbbl   %%eax,%%eax" \
85            :"=a"(Acq),"=c"(dummy):"c"(GLptr),"i"(~1L):"dx"); \
86    } while(0)
87
88#define ACPI_RELEASE_GLOBAL_LOCK(GLptr, Acq) \
89    do { \
90        int dummy; \
91        asm("1:     movl (%1),%%eax;" \
92            "movl   %%eax,%%edx;" \
93            "andl   %2,%%edx;" \
94            "lock;  cmpxchgl %%edx,(%1);" \
95            "jnz    1b;" \
96            "andl   $0x1,%%eax" \
97            :"=a"(Acq),"=c"(dummy):"c"(GLptr),"i"(~3L):"dx"); \
98    } while(0)
99
100
101/*
102 * Math helper asm macros
103 */
104#define ACPI_DIV_64_BY_32(n_hi, n_lo, d32, q32, r32) \
105        asm("divl %2;"        \
106        :"=a"(q32), "=d"(r32) \
107        :"r"(d32),            \
108        "0"(n_lo), "1"(n_hi))
109
110
111#define ACPI_SHIFT_RIGHT_64(n_hi, n_lo) \
112    asm("shrl   $1,%2;"             \
113        "rcrl   $1,%3;"             \
114        :"=r"(n_hi), "=r"(n_lo)     \
115        :"0"(n_hi), "1"(n_lo))
116
117/*! [End] no source code translation !*/
118#endif /* _KERNEL */
119
120#define ACPI_MACHINE_WIDTH             32
121#define COMPILER_DEPENDENT_INT64       long long
122#define COMPILER_DEPENDENT_UINT64      unsigned long long
123#define ACPI_USE_NATIVE_DIVIDE
124
125#endif /* __ACPICA_MACHDEP_H__ */
126