fs: use kmem_cache_zalloc instead
[pv_ops_mirror.git] / include / asm-x86 / acpi_64.h
blob98173357dd89c4d6291cd2d0400bace25022adbd
1 /*
2 * asm-x86_64/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>
32 #include <asm/numa.h>
34 #define COMPILER_DEPENDENT_INT64 long long
35 #define COMPILER_DEPENDENT_UINT64 unsigned long long
38 * Calling conventions:
40 * ACPI_SYSTEM_XFACE - Interfaces to host OS (handlers, threads)
41 * ACPI_EXTERNAL_XFACE - External ACPI interfaces
42 * ACPI_INTERNAL_XFACE - Internal ACPI interfaces
43 * ACPI_INTERNAL_VAR_XFACE - Internal variable-parameter list interfaces
45 #define ACPI_SYSTEM_XFACE
46 #define ACPI_EXTERNAL_XFACE
47 #define ACPI_INTERNAL_XFACE
48 #define ACPI_INTERNAL_VAR_XFACE
50 /* Asm macros */
52 #define ACPI_ASM_MACROS
53 #define BREAKPOINT3
54 #define ACPI_DISABLE_IRQS() local_irq_disable()
55 #define ACPI_ENABLE_IRQS() local_irq_enable()
56 #define ACPI_FLUSH_CPU_CACHE() wbinvd()
58 int __acpi_acquire_global_lock(unsigned int *lock);
59 int __acpi_release_global_lock(unsigned int *lock);
61 #define ACPI_ACQUIRE_GLOBAL_LOCK(facs, Acq) \
62 ((Acq) = __acpi_acquire_global_lock(&facs->global_lock))
64 #define ACPI_RELEASE_GLOBAL_LOCK(facs, Acq) \
65 ((Acq) = __acpi_release_global_lock(&facs->global_lock))
68 * Math helper asm macros
70 #define ACPI_DIV_64_BY_32(n_hi, n_lo, d32, q32, r32) \
71 asm("divl %2;" \
72 :"=a"(q32), "=d"(r32) \
73 :"r"(d32), \
74 "0"(n_lo), "1"(n_hi))
77 #define ACPI_SHIFT_RIGHT_64(n_hi, n_lo) \
78 asm("shrl $1,%2;" \
79 "rcrl $1,%3;" \
80 :"=r"(n_hi), "=r"(n_lo) \
81 :"0"(n_hi), "1"(n_lo))
83 #ifdef CONFIG_ACPI
84 extern int acpi_lapic;
85 extern int acpi_ioapic;
86 extern int acpi_noirq;
87 extern int acpi_strict;
88 extern int acpi_disabled;
89 extern int acpi_pci_disabled;
90 extern int acpi_ht;
91 static inline void disable_acpi(void)
93 acpi_disabled = 1;
94 acpi_ht = 0;
95 acpi_pci_disabled = 1;
96 acpi_noirq = 1;
99 /* Fixmap pages to reserve for ACPI boot-time tables (see fixmap.h) */
100 #define FIX_ACPI_PAGES 4
102 extern int acpi_gsi_to_irq(u32 gsi, unsigned int *irq);
103 static inline void acpi_noirq_set(void) { acpi_noirq = 1; }
104 static inline void acpi_disable_pci(void)
106 acpi_pci_disabled = 1;
107 acpi_noirq_set();
109 extern int acpi_irq_balance_set(char *str);
111 /* routines for saving/restoring kernel state */
112 extern int acpi_save_state_mem(void);
113 extern void acpi_restore_state_mem(void);
115 extern unsigned long acpi_wakeup_address;
117 /* early initialization routine */
118 extern void acpi_reserve_bootmem(void);
120 #else /* !CONFIG_ACPI */
122 #define acpi_lapic 0
123 #define acpi_ioapic 0
124 static inline void acpi_noirq_set(void) { }
125 static inline void acpi_disable_pci(void) { }
127 #endif /* !CONFIG_ACPI */
129 extern int acpi_numa;
130 extern int acpi_scan_nodes(unsigned long start, unsigned long end);
131 #define NR_NODE_MEMBLKS (MAX_NUMNODES*2)
133 extern int acpi_disabled;
134 extern int acpi_pci_disabled;
136 #define ARCH_HAS_POWER_INIT 1
138 extern int acpi_skip_timer_override;
139 extern int acpi_use_timer_override;
141 #ifdef CONFIG_ACPI_NUMA
142 extern void __init acpi_fake_nodes(const struct bootnode *fake_nodes,
143 int num_nodes);
144 #else
145 static inline void acpi_fake_nodes(const struct bootnode *fake_nodes,
146 int num_nodes)
149 #endif
151 #endif /*__KERNEL__*/
153 #endif /*_ASM_ACPI_H*/