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_madt_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 acpi_table_parse_madt (enum acpi_madt_type id, acpi_madt_entry_handler handler, unsigned int max_entries); 89 int acpi_table_parse_srat (enum acpi_srat_type id, acpi_madt_entry_handler handler, unsigned int max_entries); 90 int acpi_parse_mcfg (struct acpi_table_header *header); 91 void acpi_table_print_madt_entry (struct acpi_subtable_header *madt); 92 void acpi_table_print_srat_entry (struct acpi_subtable_header *srat); 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_video_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); 184 185 #endif /*CONFIG_ACPI_EC*/ 186 187 extern int acpi_blacklisted(void); 188 extern void acpi_bios_year(char *s); 189 190 #define ACPI_CSTATE_LIMIT_DEFINED /* for driver builds */ 191 #ifdef CONFIG_ACPI 192 193 /* 194 * Set highest legal C-state 195 * 0: C0 okay, but not C1 196 * 1: C1 okay, but not C2 197 * 2: C2 okay, but not C3 etc. 198 */ 199 200 extern unsigned int max_cstate; 201 202 static inline unsigned int acpi_get_cstate_limit(void) 203 { 204 return max_cstate; 205 } 206 static inline void acpi_set_cstate_limit(unsigned int new_limit) 207 { 208 max_cstate = new_limit; 209 return; 210 } 211 #else 212 static inline unsigned int acpi_get_cstate_limit(void) { return 0; } 213 static inline void acpi_set_cstate_limit(unsigned int new_limit) { return; } 214 #endif 215 216 #ifdef CONFIG_ACPI_NUMA 217 int acpi_get_pxm(acpi_handle handle); 218 int acpi_get_node(acpi_handle *handle); 219 #else 220 static inline int acpi_get_pxm(acpi_handle handle) 221 { 222 return 0; 223 } 224 static inline int acpi_get_node(acpi_handle *handle) 225 { 226 return 0; 227 } 228 #endif 229 extern int acpi_paddr_to_node(u64 start_addr, u64 size); 230 231 extern int pnpacpi_disabled; 232 233 #else /* CONFIG_ACPI */ 234 235 static inline int acpi_boot_init(void) 236 { 237 return 0; 238 } 239 240 static inline int acpi_boot_table_init(void) 241 { 242 return 0; 243 } 244 245 #endif /* CONFIG_ACPI */ 246 #endif /*_LINUX_ACPI_H*/ 247