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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
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
Venkatesh Pallipadi02df8b92005-04-15 15:07:10 -040031#include <acpi/pdc_intel.h>
32
Linus Torvalds1da177e2005-04-16 15:20:36 -070033#include <asm/system.h> /* defines cmpxchg */
34
35#define COMPILER_DEPENDENT_INT64 long long
36#define COMPILER_DEPENDENT_UINT64 unsigned long long
37
38/*
39 * Calling conventions:
40 *
41 * ACPI_SYSTEM_XFACE - Interfaces to host OS (handlers, threads)
Alexey Starikovskiyf18c5a02007-02-02 19:48:23 +030042 * ACPI_EXTERNAL_XFACE - External ACPI interfaces
Linus Torvalds1da177e2005-04-16 15:20:36 -070043 * ACPI_INTERNAL_XFACE - Internal ACPI interfaces
44 * ACPI_INTERNAL_VAR_XFACE - Internal variable-parameter list interfaces
45 */
46#define ACPI_SYSTEM_XFACE
47#define ACPI_EXTERNAL_XFACE
48#define ACPI_INTERNAL_XFACE
49#define ACPI_INTERNAL_VAR_XFACE
50
51/* Asm macros */
52
53#define ACPI_ASM_MACROS
54#define BREAKPOINT3
55#define ACPI_DISABLE_IRQS() local_irq_disable()
56#define ACPI_ENABLE_IRQS() local_irq_enable()
57#define ACPI_FLUSH_CPU_CACHE() wbinvd()
58
Andrew Mortond0a90812006-10-20 14:30:27 -070059int __acpi_acquire_global_lock(unsigned int *lock);
60int __acpi_release_global_lock(unsigned int *lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -070061
Alexey Starikovskiyad71860a2007-02-02 19:48:19 +030062#define ACPI_ACQUIRE_GLOBAL_LOCK(facs, Acq) \
63 ((Acq) = __acpi_acquire_global_lock(&facs->global_lock))
Linus Torvalds1da177e2005-04-16 15:20:36 -070064
Alexey Starikovskiyad71860a2007-02-02 19:48:19 +030065#define ACPI_RELEASE_GLOBAL_LOCK(facs, Acq) \
66 ((Acq) = __acpi_release_global_lock(&facs->global_lock))
Linus Torvalds1da177e2005-04-16 15:20:36 -070067
68/*
69 * Math helper asm macros
70 */
71#define ACPI_DIV_64_BY_32(n_hi, n_lo, d32, q32, r32) \
72 asm("divl %2;" \
73 :"=a"(q32), "=d"(r32) \
74 :"r"(d32), \
75 "0"(n_lo), "1"(n_hi))
76
77
78#define ACPI_SHIFT_RIGHT_64(n_hi, n_lo) \
79 asm("shrl $1,%2;" \
80 "rcrl $1,%3;" \
81 :"=r"(n_hi), "=r"(n_lo) \
82 :"0"(n_hi), "1"(n_lo))
83
Herbert Poetzl152475c2006-03-22 00:07:34 -080084#ifdef CONFIG_X86_IO_APIC
85extern void check_acpi_pci(void);
86#else
87static inline void check_acpi_pci(void) { }
88#endif
89
Alexey Starikovskiyf18c5a02007-02-02 19:48:23 +030090#ifdef CONFIG_ACPI
Linus Torvalds1da177e2005-04-16 15:20:36 -070091extern int acpi_lapic;
92extern int acpi_ioapic;
93extern int acpi_noirq;
94extern int acpi_strict;
95extern int acpi_disabled;
96extern int acpi_ht;
97extern int acpi_pci_disabled;
Alexey Starikovskiyf18c5a02007-02-02 19:48:23 +030098static inline void disable_acpi(void)
99{
100 acpi_disabled = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700101 acpi_ht = 0;
102 acpi_pci_disabled = 1;
103 acpi_noirq = 1;
104}
105
106/* Fixmap pages to reserve for ACPI boot-time tables (see fixmap.h) */
107#define FIX_ACPI_PAGES 4
108
109extern int acpi_gsi_to_irq(u32 gsi, unsigned int *irq);
110
111#ifdef CONFIG_X86_IO_APIC
Linus Torvalds1da177e2005-04-16 15:20:36 -0700112extern int acpi_skip_timer_override;
Andi Kleenfa18f472006-11-14 16:57:46 +0100113extern int acpi_use_timer_override;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700114#endif
115
Linus Torvalds1da177e2005-04-16 15:20:36 -0700116static inline void acpi_noirq_set(void) { acpi_noirq = 1; }
Alexey Starikovskiyf18c5a02007-02-02 19:48:23 +0300117static inline void acpi_disable_pci(void)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700118{
Alexey Starikovskiyf18c5a02007-02-02 19:48:23 +0300119 acpi_pci_disabled = 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700120 acpi_noirq_set();
121}
122extern int acpi_irq_balance_set(char *str);
Len Brown6153df7b2005-08-25 12:27:09 -0400123
124#else /* !CONFIG_ACPI */
125
126#define acpi_lapic 0
127#define acpi_ioapic 0
Linus Torvalds1da177e2005-04-16 15:20:36 -0700128static inline void acpi_noirq_set(void) { }
129static inline void acpi_disable_pci(void) { }
Rusty Russella795ca52007-02-12 14:39:38 +1100130static inline void disable_acpi(void) { }
Len Brown6153df7b2005-08-25 12:27:09 -0400131
132#endif /* !CONFIG_ACPI */
133
Linus Torvalds1da177e2005-04-16 15:20:36 -0700134
135#ifdef CONFIG_ACPI_SLEEP
136
137/* routines for saving/restoring kernel state */
138extern int acpi_save_state_mem(void);
139extern void acpi_restore_state_mem(void);
140
141extern unsigned long acpi_wakeup_address;
142
143/* early initialization routine */
144extern void acpi_reserve_bootmem(void);
145
146#endif /*CONFIG_ACPI_SLEEP*/
147
Venkatesh Pallipadi05131ec2005-10-23 16:31:00 -0400148#define ARCH_HAS_POWER_INIT 1
Venkatesh Pallipadi02df8b92005-04-15 15:07:10 -0400149
Linus Torvalds1da177e2005-04-16 15:20:36 -0700150#endif /*__KERNEL__*/
151
152#endif /*_ASM_ACPI_H*/