Linux kernel mirror (for testing)
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linux
1/*
2 * acpi.h - ACPI Interface
3 *
4 * Copyright (C) 2001 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
5 *
6 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 *
22 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
23 */
24
25#ifndef _LINUX_ACPI_H
26#define _LINUX_ACPI_H
27
28
29#ifdef CONFIG_ACPI
30
31#ifndef _LINUX
32#define _LINUX
33#endif
34
35#include <linux/list.h>
36
37#include <acpi/acpi.h>
38#include <acpi/acpi_bus.h>
39#include <acpi/acpi_drivers.h>
40#include <acpi/acpi_numa.h>
41#include <asm/acpi.h>
42
43
44#ifdef CONFIG_ACPI
45
46enum acpi_irq_model_id {
47 ACPI_IRQ_MODEL_PIC = 0,
48 ACPI_IRQ_MODEL_IOAPIC,
49 ACPI_IRQ_MODEL_IOSAPIC,
50 ACPI_IRQ_MODEL_PLATFORM,
51 ACPI_IRQ_MODEL_COUNT
52};
53
54extern enum acpi_irq_model_id acpi_irq_model;
55
56enum acpi_interrupt_id {
57 ACPI_INTERRUPT_PMI = 1,
58 ACPI_INTERRUPT_INIT,
59 ACPI_INTERRUPT_CPEI,
60 ACPI_INTERRUPT_COUNT
61};
62
63#define ACPI_SPACE_MEM 0
64
65enum acpi_address_range_id {
66 ACPI_ADDRESS_RANGE_MEMORY = 1,
67 ACPI_ADDRESS_RANGE_RESERVED = 2,
68 ACPI_ADDRESS_RANGE_ACPI = 3,
69 ACPI_ADDRESS_RANGE_NVS = 4,
70 ACPI_ADDRESS_RANGE_COUNT
71};
72
73
74/* Table Handlers */
75
76typedef int (*acpi_table_handler) (struct acpi_table_header *table);
77
78typedef int (*acpi_table_entry_handler) (struct acpi_subtable_header *header, const unsigned long end);
79
80char * __acpi_map_table (unsigned long phys_addr, unsigned long size);
81unsigned long acpi_find_rsdp (void);
82int acpi_boot_init (void);
83int acpi_boot_table_init (void);
84int acpi_numa_init (void);
85
86int acpi_table_init (void);
87int acpi_table_parse (char *id, acpi_table_handler handler);
88int __init acpi_table_parse_entries(char *id, unsigned long table_size,
89 int entry_id, acpi_table_entry_handler handler, unsigned int max_entries);
90int acpi_table_parse_madt (enum acpi_madt_type id, acpi_table_entry_handler handler, unsigned int max_entries);
91int acpi_table_parse_srat (enum acpi_srat_type id, acpi_table_entry_handler handler, unsigned int max_entries);
92int acpi_parse_mcfg (struct acpi_table_header *header);
93void acpi_table_print_madt_entry (struct acpi_subtable_header *madt);
94void acpi_table_print_srat_entry (struct acpi_subtable_header *srat);
95
96/* the following four functions are architecture-dependent */
97#ifdef CONFIG_HAVE_ARCH_PARSE_SRAT
98#define NR_NODE_MEMBLKS MAX_NUMNODES
99#define acpi_numa_slit_init(slit) do {} while (0)
100#define acpi_numa_processor_affinity_init(pa) do {} while (0)
101#define acpi_numa_memory_affinity_init(ma) do {} while (0)
102#define acpi_numa_arch_fixup() do {} while (0)
103#else
104void acpi_numa_slit_init (struct acpi_table_slit *slit);
105void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa);
106void acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma);
107void acpi_numa_arch_fixup(void);
108#endif
109
110#ifdef CONFIG_ACPI_HOTPLUG_CPU
111/* Arch dependent functions for cpu hotplug support */
112int acpi_map_lsapic(acpi_handle handle, int *pcpu);
113int acpi_unmap_lsapic(int cpu);
114#endif /* CONFIG_ACPI_HOTPLUG_CPU */
115
116int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base);
117int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base);
118
119extern int acpi_mp_config;
120
121extern struct acpi_mcfg_allocation *pci_mmcfg_config;
122extern int pci_mmcfg_config_num;
123
124extern int sbf_port;
125extern unsigned long acpi_video_flags;
126
127#else /* !CONFIG_ACPI */
128
129#define acpi_mp_config 0
130
131#endif /* !CONFIG_ACPI */
132
133int acpi_register_gsi (u32 gsi, int triggering, int polarity);
134int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
135
136/*
137 * This function undoes the effect of one call to acpi_register_gsi().
138 * If this matches the last registration, any IRQ resources for gsi
139 * are freed.
140 */
141void acpi_unregister_gsi (u32 gsi);
142
143#ifdef CONFIG_ACPI
144
145struct acpi_prt_entry {
146 struct list_head node;
147 struct acpi_pci_id id;
148 u8 pin;
149 struct {
150 acpi_handle handle;
151 u32 index;
152 } link;
153 u32 irq;
154};
155
156struct acpi_prt_list {
157 int count;
158 struct list_head entries;
159};
160
161struct pci_dev;
162
163int acpi_pci_irq_enable (struct pci_dev *dev);
164void acpi_penalize_isa_irq(int irq, int active);
165
166void acpi_pci_irq_disable (struct pci_dev *dev);
167
168struct acpi_pci_driver {
169 struct acpi_pci_driver *next;
170 int (*add)(acpi_handle handle);
171 void (*remove)(acpi_handle handle);
172};
173
174int acpi_pci_register_driver(struct acpi_pci_driver *driver);
175void acpi_pci_unregister_driver(struct acpi_pci_driver *driver);
176
177#endif /* CONFIG_ACPI */
178
179#ifdef CONFIG_ACPI_EC
180
181extern int ec_read(u8 addr, u8 *val);
182extern int ec_write(u8 addr, u8 val);
183extern int ec_transaction(u8 command,
184 const u8 *wdata, unsigned wdata_len,
185 u8 *rdata, unsigned rdata_len);
186
187#endif /*CONFIG_ACPI_EC*/
188
189extern int acpi_blacklisted(void);
190extern void acpi_bios_year(char *s);
191
192#define ACPI_CSTATE_LIMIT_DEFINED /* for driver builds */
193#ifdef CONFIG_ACPI
194
195/*
196 * Set highest legal C-state
197 * 0: C0 okay, but not C1
198 * 1: C1 okay, but not C2
199 * 2: C2 okay, but not C3 etc.
200 */
201
202extern unsigned int max_cstate;
203
204static inline unsigned int acpi_get_cstate_limit(void)
205{
206 return max_cstate;
207}
208static inline void acpi_set_cstate_limit(unsigned int new_limit)
209{
210 max_cstate = new_limit;
211 return;
212}
213#else
214static inline unsigned int acpi_get_cstate_limit(void) { return 0; }
215static inline void acpi_set_cstate_limit(unsigned int new_limit) { return; }
216#endif
217
218#ifdef CONFIG_ACPI_NUMA
219int acpi_get_pxm(acpi_handle handle);
220int acpi_get_node(acpi_handle *handle);
221#else
222static inline int acpi_get_pxm(acpi_handle handle)
223{
224 return 0;
225}
226static inline int acpi_get_node(acpi_handle *handle)
227{
228 return 0;
229}
230#endif
231extern int acpi_paddr_to_node(u64 start_addr, u64 size);
232
233extern int pnpacpi_disabled;
234
235#else /* CONFIG_ACPI */
236
237static inline int acpi_boot_init(void)
238{
239 return 0;
240}
241
242static inline int acpi_boot_table_init(void)
243{
244 return 0;
245}
246
247#endif /* CONFIG_ACPI */
248#endif /*_LINUX_ACPI_H*/