1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
|
/*
* asm-i386/acpi.h
*
* Copyright (C) 2001 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
* Copyright (C) 2001 Patrick Mochel <mochel@osdl.org>
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*/
#ifndef _ASM_ACPI_H
#define _ASM_ACPI_H
#ifdef __KERNEL__
#include <asm/system.h> /* defines cmpxchg */
#define COMPILER_DEPENDENT_INT64 long long
#define COMPILER_DEPENDENT_UINT64 unsigned long long
/*
* Calling conventions:
*
* ACPI_SYSTEM_XFACE - Interfaces to host OS (handlers, threads)
* ACPI_EXTERNAL_XFACE - External ACPI interfaces
* ACPI_INTERNAL_XFACE - Internal ACPI interfaces
* ACPI_INTERNAL_VAR_XFACE - Internal variable-parameter list interfaces
*/
#define ACPI_SYSTEM_XFACE
#define ACPI_EXTERNAL_XFACE
#define ACPI_INTERNAL_XFACE
#define ACPI_INTERNAL_VAR_XFACE
/* Asm macros */
#define ACPI_ASM_MACROS
#define BREAKPOINT3
#define ACPI_DISABLE_IRQS() local_irq_disable()
#define ACPI_ENABLE_IRQS() local_irq_enable()
#define ACPI_FLUSH_CPU_CACHE() wbinvd()
static inline int
__acpi_acquire_global_lock (unsigned int *lock)
{
unsigned int old, new, val;
do {
old = *lock;
new = (((old & ~0x3) + 2) + ((old >> 1) & 0x1));
val = cmpxchg(lock, old, new);
} while (unlikely (val != old));
return (new < 3) ? -1 : 0;
}
static inline int
__acpi_release_global_lock (unsigned int *lock)
{
unsigned int old, new, val;
do {
old = *lock;
new = old & ~0x3;
val = cmpxchg(lock, old, new);
} while (unlikely (val != old));
return old & 0x1;
}
#define ACPI_ACQUIRE_GLOBAL_LOCK(GLptr, Acq) \
((Acq) = __acpi_acquire_global_lock((unsigned int *) GLptr))
#define ACPI_RELEASE_GLOBAL_LOCK(GLptr, Acq) \
((Acq) = __acpi_release_global_lock((unsigned int *) GLptr))
/*
* Math helper asm macros
*/
#define ACPI_DIV_64_BY_32(n_hi, n_lo, d32, q32, r32) \
asm("divl %2;" \
:"=a"(q32), "=d"(r32) \
:"r"(d32), \
"0"(n_lo), "1"(n_hi))
#define ACPI_SHIFT_RIGHT_64(n_hi, n_lo) \
asm("shrl $1,%2;" \
"rcrl $1,%3;" \
:"=r"(n_hi), "=r"(n_lo) \
:"0"(n_hi), "1"(n_lo))
/*
* Refer Intel ACPI _PDC support document for bit definitions
*/
#define ACPI_PDC_EST_CAPABILITY_SMP 0xa
#define ACPI_PDC_EST_CAPABILITY_MSR 0x1
#ifdef CONFIG_ACPI_BOOT
extern int acpi_lapic;
extern int acpi_ioapic;
extern int acpi_noirq;
extern int acpi_strict;
extern int acpi_disabled;
extern int acpi_ht;
extern int acpi_pci_disabled;
static inline void disable_acpi(void)
{
acpi_disabled = 1;
acpi_ht = 0;
acpi_pci_disabled = 1;
acpi_noirq = 1;
}
/* Fixmap pages to reserve for ACPI boot-time tables (see fixmap.h) */
#define FIX_ACPI_PAGES 4
extern int acpi_gsi_to_irq(u32 gsi, unsigned int *irq);
#ifdef CONFIG_X86_IO_APIC
extern int skip_ioapic_setup;
extern int acpi_skip_timer_override;
extern void check_acpi_pci(void);
static inline void disable_ioapic_setup(void)
{
skip_ioapic_setup = 1;
}
static inline int ioapic_setup_disabled(void)
{
return skip_ioapic_setup;
}
#else
static inline void disable_ioapic_setup(void) { }
static inline void check_acpi_pci(void) { }
#endif
#else /* CONFIG_ACPI_BOOT */
# define acpi_lapic 0
# define acpi_ioapic 0
#endif
#ifdef CONFIG_ACPI_PCI
static inline void acpi_noirq_set(void) { acpi_noirq = 1; }
static inline void acpi_disable_pci(void)
{
acpi_pci_disabled = 1;
acpi_noirq_set();
}
extern int acpi_irq_balance_set(char *str);
#else
static inline void acpi_noirq_set(void) { }
static inline void acpi_disable_pci(void) { }
static inline int acpi_irq_balance_set(char *str) { return 0; }
#endif
#ifdef CONFIG_ACPI_SLEEP
/* routines for saving/restoring kernel state */
extern int acpi_save_state_mem(void);
extern void acpi_restore_state_mem(void);
extern unsigned long acpi_wakeup_address;
/* early initialization routine */
extern void acpi_reserve_bootmem(void);
#endif /*CONFIG_ACPI_SLEEP*/
extern u8 x86_acpiid_to_apicid[];
#endif /*__KERNEL__*/
#endif /*_ASM_ACPI_H*/
|
