1 #ifndef _ASM_X86_ACPI_H
2 #define _ASM_X86_ACPI_H
5 * Copyright (C) 2001 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
6 * Copyright (C) 2001 Patrick Mochel <mochel@osdl.org>
8 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
24 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
26 #include <acpi/pdc_intel.h>
29 #include <asm/processor.h>
31 #define COMPILER_DEPENDENT_INT64 long long
32 #define COMPILER_DEPENDENT_UINT64 unsigned long long
35 * Calling conventions:
37 * ACPI_SYSTEM_XFACE - Interfaces to host OS (handlers, threads)
38 * ACPI_EXTERNAL_XFACE - External ACPI interfaces
39 * ACPI_INTERNAL_XFACE - Internal ACPI interfaces
40 * ACPI_INTERNAL_VAR_XFACE - Internal variable-parameter list interfaces
42 #define ACPI_SYSTEM_XFACE
43 #define ACPI_EXTERNAL_XFACE
44 #define ACPI_INTERNAL_XFACE
45 #define ACPI_INTERNAL_VAR_XFACE
49 #define ACPI_ASM_MACROS
51 #define ACPI_DISABLE_IRQS() local_irq_disable()
52 #define ACPI_ENABLE_IRQS() local_irq_enable()
53 #define ACPI_FLUSH_CPU_CACHE() wbinvd()
55 int __acpi_acquire_global_lock(unsigned int *lock);
56 int __acpi_release_global_lock(unsigned int *lock);
58 #define ACPI_ACQUIRE_GLOBAL_LOCK(facs, Acq) \
59 ((Acq) = __acpi_acquire_global_lock(&facs->global_lock))
61 #define ACPI_RELEASE_GLOBAL_LOCK(facs, Acq) \
62 ((Acq) = __acpi_release_global_lock(&facs->global_lock))
65 * Math helper asm macros
67 #define ACPI_DIV_64_BY_32(n_hi, n_lo, d32, q32, r32) \
69 :"=a"(q32), "=d"(r32) \
74 #define ACPI_SHIFT_RIGHT_64(n_hi, n_lo) \
77 :"=r"(n_hi), "=r"(n_lo) \
78 :"0"(n_hi), "1"(n_lo))
81 extern int acpi_lapic;
82 extern int acpi_ioapic;
83 extern int acpi_noirq;
84 extern int acpi_strict;
85 extern int acpi_disabled;
87 extern int acpi_pci_disabled;
88 extern int acpi_skip_timer_override;
89 extern int acpi_use_timer_override;
91 static inline void disable_acpi(void)
95 acpi_pci_disabled = 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);
104 static inline void acpi_noirq_set(void) { acpi_noirq = 1; }
105 static inline void acpi_disable_pci(void)
107 acpi_pci_disabled = 1;
110 extern int acpi_irq_balance_set(char *str);
112 /* routines for saving/restoring kernel state */
113 extern int acpi_save_state_mem(void);
114 extern void acpi_restore_state_mem(void);
116 extern unsigned long acpi_wakeup_address;
118 /* early initialization routine */
119 extern void acpi_reserve_bootmem(void);
122 * Check if the CPU can handle C2 and deeper
124 static inline unsigned int acpi_processor_cstate_check(unsigned int max_cstate)
127 * Early models (<=5) of AMD Opterons are not supposed to go into
130 * Steppings 0x0A and later are good
132 if (boot_cpu_data.x86 == 0x0F &&
133 boot_cpu_data.x86_vendor == X86_VENDOR_AMD &&
134 boot_cpu_data.x86_model <= 0x05 &&
135 boot_cpu_data.x86_mask < 0x0A)
141 #else /* !CONFIG_ACPI */
144 #define acpi_ioapic 0
145 static inline void acpi_noirq_set(void) { }
146 static inline void acpi_disable_pci(void) { }
147 static inline void disable_acpi(void) { }
149 #endif /* !CONFIG_ACPI */
151 #define ARCH_HAS_POWER_INIT 1
155 #ifdef CONFIG_ACPI_NUMA
156 extern int acpi_numa;
157 extern int acpi_scan_nodes(unsigned long start, unsigned long end);
159 # define NR_NODE_MEMBLKS (MAX_NUMNODES*2)
161 extern void __init acpi_fake_nodes(const struct bootnode *fake_nodes,
164 static inline void acpi_fake_nodes(const struct bootnode *fake_nodes,
170 #endif /*__X86_ASM_ACPI_H*/