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 #include <linux/mod_devicetable.h>
  37
  38 #include <acpi/acpi.h>
  39 #include <acpi/acpi_bus.h>
  40 #include <acpi/acpi_drivers.h>
  41 #include <acpi/acpi_numa.h>
  42 #include <asm/acpi.h>
  43
  44
  45 #ifdef CONFIG_ACPI
  46
  47 enum acpi_irq_model_id {
  48         ACPI_IRQ_MODEL_PIC = 0,
  49         ACPI_IRQ_MODEL_IOAPIC,
  50         ACPI_IRQ_MODEL_IOSAPIC,
  51         ACPI_IRQ_MODEL_PLATFORM,
  52         ACPI_IRQ_MODEL_COUNT
  53 };
  54
  55 extern enum acpi_irq_model_id   acpi_irq_model;
  56
  57 enum acpi_interrupt_id {
  58         ACPI_INTERRUPT_PMI      = 1,
  59         ACPI_INTERRUPT_INIT,
  60         ACPI_INTERRUPT_CPEI,
  61         ACPI_INTERRUPT_COUNT
  62 };
  63
  64 #define ACPI_SPACE_MEM          0
  65
  66 enum acpi_address_range_id {
  67         ACPI_ADDRESS_RANGE_MEMORY = 1,
  68         ACPI_ADDRESS_RANGE_RESERVED = 2,
  69         ACPI_ADDRESS_RANGE_ACPI = 3,
  70         ACPI_ADDRESS_RANGE_NVS  = 4,
  71         ACPI_ADDRESS_RANGE_COUNT
  72 };
  73
  74
  75 /* Table Handlers */
  76
  77 typedef int (*acpi_table_handler) (struct acpi_table_header *table);
  78
  79 typedef int (*acpi_table_entry_handler) (struct acpi_subtable_header *header, const unsigned long end);
  80
  81 char * __acpi_map_table (unsigned long phys_addr, unsigned long size);
  82 unsigned long acpi_find_rsdp (void);
  83 int acpi_boot_init (void);
  84 int acpi_boot_table_init (void);
  85 int acpi_numa_init (void);
  86
  87 int acpi_table_init (void);
  88 int acpi_table_parse (char *id, acpi_table_handler handler);
  89 int __init acpi_table_parse_entries(char *id, unsigned long table_size,
  90         int entry_id, acpi_table_entry_handler handler, unsigned int max_entries);
  91 int acpi_table_parse_madt (enum acpi_madt_type id, acpi_table_entry_handler handler, unsigned int max_entries);
  92 int acpi_parse_mcfg (struct acpi_table_header *header);
  93 void acpi_table_print_madt_entry (struct acpi_subtable_header *madt);
  94
  95 /* the following four functions are architecture-dependent */
  96 #ifdef CONFIG_HAVE_ARCH_PARSE_SRAT
  97 #define NR_NODE_MEMBLKS MAX_NUMNODES
  98 #define acpi_numa_slit_init(slit) do {} while (0)
  99 #define acpi_numa_processor_affinity_init(pa) do {} while (0)
 100 #define acpi_numa_memory_affinity_init(ma) do {} while (0)
 101 #define acpi_numa_arch_fixup() do {} while (0)
 102 #else
 103 void acpi_numa_slit_init (struct acpi_table_slit *slit);
 104 void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa);
 105 void acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma);
 106 void acpi_numa_arch_fixup(void);
 107 #endif
 108
 109 #ifdef CONFIG_ACPI_HOTPLUG_CPU
 110 /* Arch dependent functions for cpu hotplug support */
 111 int acpi_map_lsapic(acpi_handle handle, int *pcpu);
 112 int acpi_unmap_lsapic(int cpu);
 113 #endif /* CONFIG_ACPI_HOTPLUG_CPU */
 114
 115 int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base);
 116 int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base);
 117
 118 extern int acpi_mp_config;
 119
 120 extern struct acpi_mcfg_allocation *pci_mmcfg_config;
 121 extern int pci_mmcfg_config_num;
 122
 123 extern int sbf_port;
 124 extern unsigned long acpi_realmode_flags;
 125
 126 #else   /* !CONFIG_ACPI */
 127
 128 #define acpi_mp_config  0
 129
 130 #endif  /* !CONFIG_ACPI */
 131
 132 int acpi_register_gsi (u32 gsi, int triggering, int polarity);
 133 int acpi_gsi_to_irq (u32 gsi, unsigned int *irq);
 134
 135 /*
 136  * This function undoes the effect of one call to acpi_register_gsi().
 137  * If this matches the last registration, any IRQ resources for gsi
 138  * are freed.
 139  */
 140 void acpi_unregister_gsi (u32 gsi);
 141
 142 #ifdef CONFIG_ACPI
 143
 144 struct acpi_prt_entry {
 145         struct list_head        node;
 146         struct acpi_pci_id      id;
 147         u8                      pin;
 148         struct {
 149                 acpi_handle             handle;
 150                 u32                     index;
 151         }                       link;
 152         u32                     irq;
 153 };
 154
 155 struct acpi_prt_list {
 156         int                     count;
 157         struct list_head        entries;
 158 };
 159
 160 struct pci_dev;
 161
 162 int acpi_pci_irq_enable (struct pci_dev *dev);
 163 void acpi_penalize_isa_irq(int irq, int active);
 164
 165 void acpi_pci_irq_disable (struct pci_dev *dev);
 166
 167 struct acpi_pci_driver {
 168         struct acpi_pci_driver *next;
 169         int (*add)(acpi_handle handle);
 170         void (*remove)(acpi_handle handle);
 171 };
 172
 173 int acpi_pci_register_driver(struct acpi_pci_driver *driver);
 174 void acpi_pci_unregister_driver(struct acpi_pci_driver *driver);
 175
 176 #endif /* CONFIG_ACPI */
 177
 178 #ifdef CONFIG_ACPI_EC
 179
 180 extern int ec_read(u8 addr, u8 *val);
 181 extern int ec_write(u8 addr, u8 val);
 182 extern int ec_transaction(u8 command,
 183                           const u8 *wdata, unsigned wdata_len,
 184                           u8 *rdata, unsigned rdata_len,
 185                           int force_poll);
 186
 187 #endif /*CONFIG_ACPI_EC*/
 188
 189 extern int acpi_blacklisted(void);
 190 extern 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
 202 extern unsigned int max_cstate;
 203
 204 static inline unsigned int acpi_get_cstate_limit(void)
 205 {
 206         return max_cstate;
 207 }
 208 static inline void acpi_set_cstate_limit(unsigned int new_limit)
 209 {
 210         max_cstate = new_limit;
 211         return;
 212 }
 213 #else
 214 static inline unsigned int acpi_get_cstate_limit(void) { return 0; }
 215 static inline void acpi_set_cstate_limit(unsigned int new_limit) { return; }
 216 #endif
 217
 218 #ifdef CONFIG_ACPI_NUMA
 219 int acpi_get_pxm(acpi_handle handle);
 220 int acpi_get_node(acpi_handle *handle);
 221 #else
 222 static inline int acpi_get_pxm(acpi_handle handle)
 223 {
 224         return 0;
 225 }
 226 static inline int acpi_get_node(acpi_handle *handle)
 227 {
 228         return 0;
 229 }
 230 #endif
 231 extern int acpi_paddr_to_node(u64 start_addr, u64 size);
 232
 233 extern int pnpacpi_disabled;
 234
 235 #define PXM_INVAL       (-1)
 236 #define NID_INVAL       (-1)
 237
 238 #else   /* CONFIG_ACPI */
 239
 240 static inline int acpi_boot_init(void)
 241 {
 242         return 0;
 243 }
 244
 245 static inline int acpi_boot_table_init(void)
 246 {
 247         return 0;
 248 }
 249
 250 #endif  /* CONFIG_ACPI */
 251 #endif  /*_LINUX_ACPI_H*/