fs: use kmem_cache_zalloc instead
[pv_ops_mirror.git] / include / asm-x86 / acpi_32.h
blob125179adf0440976fc4face93804ebff7800c79a
1 /*
2 * asm-i386/acpi.h
4 * Copyright (C) 2001 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
5 * Copyright (C) 2001 Patrick Mochel <mochel@osdl.org>
7 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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.
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.
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
23 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
26 #ifndef _ASM_ACPI_H
27 #define _ASM_ACPI_H
29 #ifdef __KERNEL__
31 #include <acpi/pdc_intel.h>
33 #include <asm/system.h> /* defines cmpxchg */
35 #define COMPILER_DEPENDENT_INT64 long long
36 #define COMPILER_DEPENDENT_UINT64 unsigned long long
39 * Calling conventions:
41 * ACPI_SYSTEM_XFACE - Interfaces to host OS (handlers, threads)
42 * ACPI_EXTERNAL_XFACE - External ACPI interfaces
43 * ACPI_INTERNAL_XFACE - Internal ACPI interfaces
44 * ACPI_INTERNAL_VAR_XFACE - Internal variable-parameter list interfaces
46 #define ACPI_SYSTEM_XFACE
47 #define ACPI_EXTERNAL_XFACE
48 #define ACPI_INTERNAL_XFACE
49 #define ACPI_INTERNAL_VAR_XFACE
51 /* Asm macros */
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()
59 int __acpi_acquire_global_lock(unsigned int *lock);
60 int __acpi_release_global_lock(unsigned int *lock);
62 #define ACPI_ACQUIRE_GLOBAL_LOCK(facs, Acq) \
63 ((Acq) = __acpi_acquire_global_lock(&facs->global_lock))
65 #define ACPI_RELEASE_GLOBAL_LOCK(facs, Acq) \
66 ((Acq) = __acpi_release_global_lock(&facs->global_lock))
69 * Math helper asm macros
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))
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))
84 #ifdef CONFIG_X86_IO_APIC
85 extern void check_acpi_pci(void);
86 #else
87 static inline void check_acpi_pci(void) { }
88 #endif
90 #ifdef CONFIG_ACPI
91 extern int acpi_lapic;
92 extern int acpi_ioapic;
93 extern int acpi_noirq;
94 extern int acpi_strict;
95 extern int acpi_disabled;
96 extern int acpi_ht;
97 extern int acpi_pci_disabled;
98 static inline void disable_acpi(void)
100 acpi_disabled = 1;
101 acpi_ht = 0;
102 acpi_pci_disabled = 1;
103 acpi_noirq = 1;
106 /* Fixmap pages to reserve for ACPI boot-time tables (see fixmap.h) */
107 #define FIX_ACPI_PAGES 4
109 extern int acpi_gsi_to_irq(u32 gsi, unsigned int *irq);
111 #ifdef CONFIG_X86_IO_APIC
112 extern int acpi_skip_timer_override;
113 extern int acpi_use_timer_override;
114 #endif
116 static inline void acpi_noirq_set(void) { acpi_noirq = 1; }
117 static inline void acpi_disable_pci(void)
119 acpi_pci_disabled = 1;
120 acpi_noirq_set();
122 extern int acpi_irq_balance_set(char *str);
124 /* routines for saving/restoring kernel state */
125 extern int acpi_save_state_mem(void);
126 extern void acpi_restore_state_mem(void);
128 extern unsigned long acpi_wakeup_address;
130 /* early initialization routine */
131 extern void acpi_reserve_bootmem(void);
133 #else /* !CONFIG_ACPI */
135 #define acpi_lapic 0
136 #define acpi_ioapic 0
137 static inline void acpi_noirq_set(void) { }
138 static inline void acpi_disable_pci(void) { }
139 static inline void disable_acpi(void) { }
141 #endif /* !CONFIG_ACPI */
143 #define ARCH_HAS_POWER_INIT 1
145 #endif /*__KERNEL__*/
147 #endif /*_ASM_ACPI_H*/