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 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_table_parse_srat (enum acpi_srat_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 void 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 104 void acpi_numa_slit_init (struct acpi_table_slit *slit); 105 void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa); 106 void acpi_numa_memory_affinity_init (struct acpi_srat_mem_affinity *ma); 107 void acpi_numa_arch_fixup(void); 108 #endif 109 110 #ifdef CONFIG_ACPI_HOTPLUG_CPU 111 /* Arch dependent functions for cpu hotplug support */ 112 int acpi_map_lsapic(acpi_handle handle, int *pcpu); 113 int acpi_unmap_lsapic(int cpu); 114 #endif /* CONFIG_ACPI_HOTPLUG_CPU */ 115 116 int acpi_register_ioapic(acpi_handle handle, u64 phys_addr, u32 gsi_base); 117 int acpi_unregister_ioapic(acpi_handle handle, u32 gsi_base); 118 119 extern int acpi_mp_config; 120 121 extern struct acpi_mcfg_allocation *pci_mmcfg_config; 122 extern int pci_mmcfg_config_num; 123 124 extern int sbf_port; 125 extern unsigned long acpi_video_flags; 126 127 #else /* !CONFIG_ACPI */ 128 129 #define acpi_mp_config 0 130 131 #endif /* !CONFIG_ACPI */ 132 133 int acpi_register_gsi (u32 gsi, int triggering, int polarity); 134 int 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 */ 141 void acpi_unregister_gsi (u32 gsi); 142 143 #ifdef CONFIG_ACPI 144 145 struct 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 }; 155 156 struct acpi_prt_list { 157 int count; 158 struct list_head entries; 159 }; 160 161 struct pci_dev; 162 163 int acpi_pci_irq_enable (struct pci_dev *dev); 164 void acpi_penalize_isa_irq(int irq, int active); 165 166 void acpi_pci_irq_disable (struct pci_dev *dev); 167 168 struct acpi_pci_driver { 169 struct acpi_pci_driver *next; 170 int (*add)(acpi_handle handle); 171 void (*remove)(acpi_handle handle); 172 }; 173 174 int acpi_pci_register_driver(struct acpi_pci_driver *driver); 175 void acpi_pci_unregister_driver(struct acpi_pci_driver *driver); 176 177 #endif /* CONFIG_ACPI */ 178 179 #ifdef CONFIG_ACPI_EC 180 181 extern int ec_read(u8 addr, u8 *val); 182 extern int ec_write(u8 addr, u8 val); 183 extern int ec_transaction(u8 command, 184 const u8 *wdata, unsigned wdata_len, 185 u8 *rdata, unsigned rdata_len); 186 187 #endif /*CONFIG_ACPI_EC*/ 188 189 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 #else /* CONFIG_ACPI */ 236 237 static inline int acpi_boot_init(void) 238 { 239 return 0; 240 } 241 242 static inline int acpi_boot_table_init(void) 243 { 244 return 0; 245 } 246 247 #endif /* CONFIG_ACPI */ 248 #endif /*_LINUX_ACPI_H*/ 249