include/linux/acpi.h

   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
  46 enum 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
  54 extern enum acpi_irq_model_id   acpi_irq_model;
  55
  56 enum 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
  65 enum 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
  76 typedef int (*acpi_table_handler) (struct acpi_table_header *table);
  77
  78 typedef int (*acpi_table_entry_handler) (struct acpi_subtable_header *header, const unsigned long end);
  79
  80 char * __acpi_map_table (unsigned long phys_addr, unsigned long size);
  81 unsigned long acpi_find_rsdp (void);
  82 int acpi_boot_init (void);
  83 int acpi_boot_table_init (void);
  84 int acpi_numa_init (void);
  85
  86 int acpi_table_init (void);
  87 int acpi_table_parse (char *id, acpi_table_handler handler);
  88 int __init acpi_table_parse_entries(char *id, unsigned long table_size,
  89         int entry_id, acpi_table_entry_handler handler, unsigned int max_entries);
  90 int acpi_table_parse_madt (enum acpi_madt_type id, acpi_table_entry_handler handler, unsigned int max_entries);
  91 int acpi_parse_mcfg (struct acpi_table_header *header);
  92 void acpi_table_print_madt_entry (struct acpi_subtable_header *madt);
  93
  94 /* the following four functions are architecture-dependent */
  95 #ifdef CONFIG_HAVE_ARCH_PARSE_SRAT
  96 #define NR_NODE_MEMBLKS MAX_NUMNODES
  97 #define acpi_numa_slit_init(slit) do {} while (0)
  98 #define acpi_numa_processor_affinity_init(pa) do {} while (0)
  99 #define acpi_numa_memory_affinity_init(ma) do {} while (0)
 100 #define acpi_numa_arch_fixup() do {} while (0)
 101 #else
 102 void acpi_numa_slit_init (struct acpi_table_slit *slit);
 103 void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa);
 104 void acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma);
 105 void acpi_numa_arch_fixup(void);
 106 #endif
 107
 108 #ifdef CONFIG_ACPI_HOTPLUG_CPU
 109 /* Arch dependent functions for cpu hotplug support */
 110 int acpi_map_lsapic(acpi_handle handle, int *pcpu);
 111 int acpi_unmap_lsapic(int cpu);
 112 #endif /* CONFIG_ACPI_HOTPLUG_CPU */
 113
 114 int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base);
 115 int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base);
 116
 117 extern int acpi_mp_config;
 118
 119 extern struct acpi_mcfg_allocation *pci_mmcfg_config;
 120 extern int pci_mmcfg_config_num;
 121
 122 extern int sbf_port;
 123 extern unsigned long acpi_realmode_flags;
 124
 125 #else   /* !CONFIG_ACPI */
 126
 127 #define acpi_mp_config  0
 128
 129 #endif  /* !CONFIG_ACPI */
 130
 131 int acpi_register_gsi (u32 gsi, int triggering, int polarity);
 132 int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
 133
 134 /*
 135  * This function undoes the effect of one call to acpi_register_gsi().
 136  * If this matches the last registration, any IRQ resources for gsi
 137  * are freed.
 138  */
 139 void acpi_unregister_gsi (u32 gsi);
 140
 141 #ifdef CONFIG_ACPI
 142
 143 struct acpi_prt_entry {
 144         struct list_head        node;
 145         struct acpi_pci_id      id;
 146         u8                      pin;
 147         struct {
 148                 acpi_handle             handle;
 149                 u32                     index;
 150         }                       link;
 151         u32                     irq;
 152 };
 153
 154 struct acpi_prt_list {
 155         int                     count;
 156         struct list_head        entries;
 157 };
 158
 159 struct pci_dev;
 160
 161 int acpi_pci_irq_enable (struct pci_dev *dev);
 162 void acpi_penalize_isa_irq(int irq, int active);
 163
 164 void acpi_pci_irq_disable (struct pci_dev *dev);
 165
 166 struct acpi_pci_driver {
 167         struct acpi_pci_driver *next;
 168         int (*add)(acpi_handle handle);
 169         void (*remove)(acpi_handle handle);
 170 };
 171
 172 int acpi_pci_register_driver(struct acpi_pci_driver *driver);
 173 void acpi_pci_unregister_driver(struct acpi_pci_driver *driver);
 174
 175 #endif /* CONFIG_ACPI */
 176
 177 #ifdef CONFIG_ACPI_EC
 178
 179 extern int ec_read(u8 addr, u8 *val);
 180 extern int ec_write(u8 addr, u8 val);
 181 extern int ec_transaction(u8 command,
 182                           const u8 *wdata, unsigned wdata_len,
 183                           u8 *rdata, unsigned rdata_len,
 184                           int force_poll);
 185
 186 #endif /*CONFIG_ACPI_EC*/
 187
 188 extern int acpi_blacklisted(void);
 189 extern void acpi_bios_year(char *s);
 190
 191 #define ACPI_CSTATE_LIMIT_DEFINED       /* for driver builds */
 192 #ifdef  CONFIG_ACPI
 193
 194 /*
 195  * Set highest legal C-state
 196  * 0: C0 okay, but not C1
 197  * 1: C1 okay, but not C2
 198  * 2: C2 okay, but not C3 etc.
 199  */
 200
 201 extern unsigned int max_cstate;
 202
 203 static inline unsigned int acpi_get_cstate_limit(void)
 204 {
 205         return max_cstate;
 206 }
 207 static inline void acpi_set_cstate_limit(unsigned int new_limit)
 208 {
 209         max_cstate = new_limit;
 210         return;
 211 }
 212 #else
 213 static inline unsigned int acpi_get_cstate_limit(void) { return 0; }
 214 static inline void acpi_set_cstate_limit(unsigned int new_limit) { return; }
 215 #endif
 216
 217 #ifdef CONFIG_ACPI_NUMA
 218 int acpi_get_pxm(acpi_handle handle);
 219 int acpi_get_node(acpi_handle *handle);
 220 #else
 221 static inline int acpi_get_pxm(acpi_handle handle)
 222 {
 223         return 0;
 224 }
 225 static inline int acpi_get_node(acpi_handle *handle)
 226 {
 227         return 0;
 228 }
 229 #endif
 230 extern int acpi_paddr_to_node(u64 start_addr, u64 size);
 231
 232 extern int pnpacpi_disabled;
 233
 234 #else   /* CONFIG_ACPI */
 235
 236 static inline int acpi_boot_init(void)
 237 {
 238         return 0;
 239 }
 240
 241 static inline int acpi_boot_table_init(void)
 242 {
 243         return 0;
 244 }
 245
 246 #endif  /* CONFIG_ACPI */
 247 #endif  /*_LINUX_ACPI_H*/