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: releng/5.0/sys/i386/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 ""(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 :""(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__ */
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