1 /* 2 * acpi.h - ACPI Interface 3 * 4 * Copyright (C) 2001 Paul Diefenbaugh <[email protected]> 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*/ 252