diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-i386/acpi.h |
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'include/asm-i386/acpi.h')
-rw-r--r-- | include/asm-i386/acpi.h | 190 |
1 files changed, 190 insertions, 0 deletions
diff --git a/include/asm-i386/acpi.h b/include/asm-i386/acpi.h new file mode 100644 index 000000000000..c976c1dadece --- /dev/null +++ b/include/asm-i386/acpi.h | |||
@@ -0,0 +1,190 @@ | |||
1 | /* | ||
2 | * asm-i386/acpi.h | ||
3 | * | ||
4 | * Copyright (C) 2001 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com> | ||
5 | * Copyright (C) 2001 Patrick Mochel <mochel@osdl.org> | ||
6 | * | ||
7 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | ||
8 | * | ||
9 | * This program is free software; you can redistribute it and/or modify | ||
10 | * it under the terms of the GNU General Public License as published by | ||
11 | * the Free Software Foundation; either version 2 of the License, or | ||
12 | * (at your option) any later version. | ||
13 | * | ||
14 | * This program is distributed in the hope that it will be useful, | ||
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
17 | * GNU General Public License for more details. | ||
18 | * | ||
19 | * You should have received a copy of the GNU General Public License | ||
20 | * along with this program; if not, write to the Free Software | ||
21 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | ||
22 | * | ||
23 | * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | ||
24 | */ | ||
25 | |||
26 | #ifndef _ASM_ACPI_H | ||
27 | #define _ASM_ACPI_H | ||
28 | |||
29 | #ifdef __KERNEL__ | ||
30 | |||
31 | #include <asm/system.h> /* defines cmpxchg */ | ||
32 | |||
33 | #define COMPILER_DEPENDENT_INT64 long long | ||
34 | #define COMPILER_DEPENDENT_UINT64 unsigned long long | ||
35 | |||
36 | /* | ||
37 | * Calling conventions: | ||
38 | * | ||
39 | * ACPI_SYSTEM_XFACE - Interfaces to host OS (handlers, threads) | ||
40 | * ACPI_EXTERNAL_XFACE - External ACPI interfaces | ||
41 | * ACPI_INTERNAL_XFACE - Internal ACPI interfaces | ||
42 | * ACPI_INTERNAL_VAR_XFACE - Internal variable-parameter list interfaces | ||
43 | */ | ||
44 | #define ACPI_SYSTEM_XFACE | ||
45 | #define ACPI_EXTERNAL_XFACE | ||
46 | #define ACPI_INTERNAL_XFACE | ||
47 | #define ACPI_INTERNAL_VAR_XFACE | ||
48 | |||
49 | /* Asm macros */ | ||
50 | |||
51 | #define ACPI_ASM_MACROS | ||
52 | #define BREAKPOINT3 | ||
53 | #define ACPI_DISABLE_IRQS() local_irq_disable() | ||
54 | #define ACPI_ENABLE_IRQS() local_irq_enable() | ||
55 | #define ACPI_FLUSH_CPU_CACHE() wbinvd() | ||
56 | |||
57 | |||
58 | static inline int | ||
59 | __acpi_acquire_global_lock (unsigned int *lock) | ||
60 | { | ||
61 | unsigned int old, new, val; | ||
62 | do { | ||
63 | old = *lock; | ||
64 | new = (((old & ~0x3) + 2) + ((old >> 1) & 0x1)); | ||
65 | val = cmpxchg(lock, old, new); | ||
66 | } while (unlikely (val != old)); | ||
67 | return (new < 3) ? -1 : 0; | ||
68 | } | ||
69 | |||
70 | static inline int | ||
71 | __acpi_release_global_lock (unsigned int *lock) | ||
72 | { | ||
73 | unsigned int old, new, val; | ||
74 | do { | ||
75 | old = *lock; | ||
76 | new = old & ~0x3; | ||
77 | val = cmpxchg(lock, old, new); | ||
78 | } while (unlikely (val != old)); | ||
79 | return old & 0x1; | ||
80 | } | ||
81 | |||
82 | #define ACPI_ACQUIRE_GLOBAL_LOCK(GLptr, Acq) \ | ||
83 | ((Acq) = __acpi_acquire_global_lock((unsigned int *) GLptr)) | ||
84 | |||
85 | #define ACPI_RELEASE_GLOBAL_LOCK(GLptr, Acq) \ | ||
86 | ((Acq) = __acpi_release_global_lock((unsigned int *) GLptr)) | ||
87 | |||
88 | /* | ||
89 | * Math helper asm macros | ||
90 | */ | ||
91 | #define ACPI_DIV_64_BY_32(n_hi, n_lo, d32, q32, r32) \ | ||
92 | asm("divl %2;" \ | ||
93 | :"=a"(q32), "=d"(r32) \ | ||
94 | :"r"(d32), \ | ||
95 | "0"(n_lo), "1"(n_hi)) | ||
96 | |||
97 | |||
98 | #define ACPI_SHIFT_RIGHT_64(n_hi, n_lo) \ | ||
99 | asm("shrl $1,%2;" \ | ||
100 | "rcrl $1,%3;" \ | ||
101 | :"=r"(n_hi), "=r"(n_lo) \ | ||
102 | :"0"(n_hi), "1"(n_lo)) | ||
103 | |||
104 | /* | ||
105 | * Refer Intel ACPI _PDC support document for bit definitions | ||
106 | */ | ||
107 | #define ACPI_PDC_EST_CAPABILITY_SMP 0xa | ||
108 | #define ACPI_PDC_EST_CAPABILITY_MSR 0x1 | ||
109 | |||
110 | #ifdef CONFIG_ACPI_BOOT | ||
111 | extern int acpi_lapic; | ||
112 | extern int acpi_ioapic; | ||
113 | extern int acpi_noirq; | ||
114 | extern int acpi_strict; | ||
115 | extern int acpi_disabled; | ||
116 | extern int acpi_ht; | ||
117 | extern int acpi_pci_disabled; | ||
118 | static inline void disable_acpi(void) | ||
119 | { | ||
120 | acpi_disabled = 1; | ||
121 | acpi_ht = 0; | ||
122 | acpi_pci_disabled = 1; | ||
123 | acpi_noirq = 1; | ||
124 | } | ||
125 | |||
126 | /* Fixmap pages to reserve for ACPI boot-time tables (see fixmap.h) */ | ||
127 | #define FIX_ACPI_PAGES 4 | ||
128 | |||
129 | extern int acpi_gsi_to_irq(u32 gsi, unsigned int *irq); | ||
130 | |||
131 | #ifdef CONFIG_X86_IO_APIC | ||
132 | extern int skip_ioapic_setup; | ||
133 | extern int acpi_skip_timer_override; | ||
134 | |||
135 | extern void check_acpi_pci(void); | ||
136 | |||
137 | static inline void disable_ioapic_setup(void) | ||
138 | { | ||
139 | skip_ioapic_setup = 1; | ||
140 | } | ||
141 | |||
142 | static inline int ioapic_setup_disabled(void) | ||
143 | { | ||
144 | return skip_ioapic_setup; | ||
145 | } | ||
146 | |||
147 | #else | ||
148 | static inline void disable_ioapic_setup(void) { } | ||
149 | static inline void check_acpi_pci(void) { } | ||
150 | |||
151 | #endif | ||
152 | |||
153 | #else /* CONFIG_ACPI_BOOT */ | ||
154 | # define acpi_lapic 0 | ||
155 | # define acpi_ioapic 0 | ||
156 | |||
157 | #endif | ||
158 | |||
159 | #ifdef CONFIG_ACPI_PCI | ||
160 | static inline void acpi_noirq_set(void) { acpi_noirq = 1; } | ||
161 | static inline void acpi_disable_pci(void) | ||
162 | { | ||
163 | acpi_pci_disabled = 1; | ||
164 | acpi_noirq_set(); | ||
165 | } | ||
166 | extern int acpi_irq_balance_set(char *str); | ||
167 | #else | ||
168 | static inline void acpi_noirq_set(void) { } | ||
169 | static inline void acpi_disable_pci(void) { } | ||
170 | static inline int acpi_irq_balance_set(char *str) { return 0; } | ||
171 | #endif | ||
172 | |||
173 | #ifdef CONFIG_ACPI_SLEEP | ||
174 | |||
175 | /* routines for saving/restoring kernel state */ | ||
176 | extern int acpi_save_state_mem(void); | ||
177 | extern void acpi_restore_state_mem(void); | ||
178 | |||
179 | extern unsigned long acpi_wakeup_address; | ||
180 | |||
181 | /* early initialization routine */ | ||
182 | extern void acpi_reserve_bootmem(void); | ||
183 | |||
184 | #endif /*CONFIG_ACPI_SLEEP*/ | ||
185 | |||
186 | extern u8 x86_acpiid_to_apicid[]; | ||
187 | |||
188 | #endif /*__KERNEL__*/ | ||
189 | |||
190 | #endif /*_ASM_ACPI_H*/ | ||