include/acpi/actbl.h

   1 /******************************************************************************
   2  *
   3  * Name: actbl.h - Basic ACPI Table Definitions
   4  *
   5  *****************************************************************************/
   6
   7 /*
   8  * Copyright (C) 2000 - 2008, Intel Corp.
   9  * All rights reserved.
  10  *
  11  * Redistribution and use in source and binary forms, with or without
  12  * modification, are permitted provided that the following conditions
  13  * are met:
  14  * 1. Redistributions of source code must retain the above copyright
  15  *    notice, this list of conditions, and the following disclaimer,
  16  *    without modification.
  17  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
  18  *    substantially similar to the "NO WARRANTY" disclaimer below
  19  *    ("Disclaimer") and any redistribution must be conditioned upon
  20  *    including a substantially similar Disclaimer requirement for further
  21  *    binary redistribution.
  22  * 3. Neither the names of the above-listed copyright holders nor the names
  23  *    of any contributors may be used to endorse or promote products derived
  24  *    from this software without specific prior written permission.
  25  *
  26  * Alternatively, this software may be distributed under the terms of the
  27  * GNU General Public License ("GPL") version 2 as published by the Free
  28  * Software Foundation.
  29  *
  30  * NO WARRANTY
  31  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  32  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  33  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
  34  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  35  * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  36  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  37  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  38  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  39  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
  40  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  41  * POSSIBILITY OF SUCH DAMAGES.
  42  */
  43
  44 #ifndef __ACTBL_H__
  45 #define __ACTBL_H__
  46
  47 /*
  48  * Values for description table header signatures. Useful because they make
  49  * it more difficult to inadvertently type in the wrong signature.
  50  */
  51 #define ACPI_SIG_DSDT           "DSDT"  /* Differentiated System Description Table */
  52 #define ACPI_SIG_FADT           "FACP"  /* Fixed ACPI Description Table */
  53 #define ACPI_SIG_FACS           "FACS"  /* Firmware ACPI Control Structure */
  54 #define ACPI_SIG_PSDT           "PSDT"  /* Persistent System Description Table */
  55 #define ACPI_SIG_RSDP           "RSD PTR "      /* Root System Description Pointer */
  56 #define ACPI_SIG_RSDT           "RSDT"  /* Root System Description Table */
  57 #define ACPI_SIG_XSDT           "XSDT"  /* Extended  System Description Table */
  58 #define ACPI_SIG_SSDT           "SSDT"  /* Secondary System Description Table */
  59 #define ACPI_RSDP_NAME          "RSDP"  /* Short name for RSDP, not signature */
  60
  61 /*
  62  * All tables and structures must be byte-packed to match the ACPI
  63  * specification, since the tables are provided by the system BIOS
  64  */
  65 #pragma pack(1)
  66
  67 /*
  68  * These are the ACPI tables that are directly consumed by the subsystem.
  69  *
  70  * The RSDP and FACS do not use the common ACPI table header. All other ACPI
  71  * tables use the header.
  72  *
  73  * Note about bitfields: The u8 type is used for bitfields in ACPI tables.
  74  * This is the only type that is even remotely portable. Anything else is not
  75  * portable, so do not use any other bitfield types.
  76  */
  77
  78 /*******************************************************************************
  79  *
  80  * ACPI Table Header. This common header is used by all tables except the
  81  * RSDP and FACS. The define is used for direct inclusion of header into
  82  * other ACPI tables
  83  *
  84  ******************************************************************************/
  85
  86 struct acpi_table_header {
  87         char signature[ACPI_NAME_SIZE]; /* ASCII table signature */
  88         u32 length;             /* Length of table in bytes, including this header */
  89         u8 revision;            /* ACPI Specification minor version # */
  90         u8 checksum;            /* To make sum of entire table == 0 */
  91         char oem_id[ACPI_OEM_ID_SIZE];  /* ASCII OEM identification */
  92         char oem_table_id[ACPI_OEM_TABLE_ID_SIZE];      /* ASCII OEM table identification */
  93         u32 oem_revision;       /* OEM revision number */
  94         char asl_compiler_id[ACPI_NAME_SIZE];   /* ASCII ASL compiler vendor ID */
  95         u32 asl_compiler_revision;      /* ASL compiler version */
  96 };
  97
  98 /*
  99  * GAS - Generic Address Structure (ACPI 2.0+)
 100  *
 101  * Note: Since this structure is used in the ACPI tables, it is byte aligned.
 102  * If misalignment is not supported, access to the Address field must be
 103  * performed with care.
 104  */
 105 struct acpi_generic_address {
 106         u8 space_id;            /* Address space where struct or register exists */
 107         u8 bit_width;           /* Size in bits of given register */
 108         u8 bit_offset;          /* Bit offset within the register */
 109         u8 access_width;        /* Minimum Access size (ACPI 3.0) */
 110         u64 address;            /* 64-bit address of struct or register */
 111 };
 112
 113 /*******************************************************************************
 114  *
 115  * RSDP - Root System Description Pointer (Signature is "RSD PTR ")
 116  *
 117  ******************************************************************************/
 118
 119 struct acpi_table_rsdp {
 120         char signature[8];      /* ACPI signature, contains "RSD PTR " */
 121         u8 checksum;            /* ACPI 1.0 checksum */
 122         char oem_id[ACPI_OEM_ID_SIZE];  /* OEM identification */
 123         u8 revision;            /* Must be (0) for ACPI 1.0 or (2) for ACPI 2.0+ */
 124         u32 rsdt_physical_address;      /* 32-bit physical address of the RSDT */
 125         u32 length;             /* Table length in bytes, including header (ACPI 2.0+) */
 126         u64 xsdt_physical_address;      /* 64-bit physical address of the XSDT (ACPI 2.0+) */
 127         u8 extended_checksum;   /* Checksum of entire table (ACPI 2.0+) */
 128         u8 reserved[3];         /* Reserved, must be zero */
 129 };
 130
 131 #define ACPI_RSDP_REV0_SIZE     20      /* Size of original ACPI 1.0 RSDP */
 132
 133 /*******************************************************************************
 134  *
 135  * RSDT/XSDT - Root System Description Tables
 136  *
 137  ******************************************************************************/
 138
 139 struct acpi_table_rsdt {
 140         struct acpi_table_header header;        /* Common ACPI table header */
 141         u32 table_offset_entry[1];      /* Array of pointers to ACPI tables */
 142 };
 143
 144 struct acpi_table_xsdt {
 145         struct acpi_table_header header;        /* Common ACPI table header */
 146         u64 table_offset_entry[1];      /* Array of pointers to ACPI tables */
 147 };
 148
 149 /*******************************************************************************
 150  *
 151  * FACS - Firmware ACPI Control Structure (FACS)
 152  *
 153  ******************************************************************************/
 154
 155 struct acpi_table_facs {
 156         char signature[4];      /* ASCII table signature */
 157         u32 length;             /* Length of structure, in bytes */
 158         u32 hardware_signature; /* Hardware configuration signature */
 159         u32 firmware_waking_vector;     /* 32-bit physical address of the Firmware Waking Vector */
 160         u32 global_lock;        /* Global Lock for shared hardware resources */
 161         u32 flags;
 162         u64 xfirmware_waking_vector;    /* 64-bit version of the Firmware Waking Vector (ACPI 2.0+) */
 163         u8 version;             /* Version of this table (ACPI 2.0+) */
 164         u8 reserved[31];        /* Reserved, must be zero */
 165 };
 166
 167 /* Flag macros */
 168
 169 #define ACPI_FACS_S4_BIOS_PRESENT (1)   /* 00: S4BIOS support is present */
 170
 171 /* Global lock flags */
 172
 173 #define ACPI_GLOCK_PENDING      0x01    /* 00: Pending global lock ownership */
 174 #define ACPI_GLOCK_OWNED        0x02    /* 01: Global lock is owned */
 175
 176 /*******************************************************************************
 177  *
 178  * FADT - Fixed ACPI Description Table (Signature "FACP")
 179  *
 180  ******************************************************************************/
 181
 182 /* Fields common to all versions of the FADT */
 183
 184 struct acpi_table_fadt {
 185         struct acpi_table_header header;        /* Common ACPI table header */
 186         u32 facs;               /* 32-bit physical address of FACS */
 187         u32 dsdt;               /* 32-bit physical address of DSDT */
 188         u8 model;               /* System Interrupt Model (ACPI 1.0) - not used in ACPI 2.0+ */
 189         u8 preferred_profile;   /* Conveys preferred power management profile to OSPM. */
 190         u16 sci_interrupt;      /* System vector of SCI interrupt */
 191         u32 smi_command;        /* 32-bit Port address of SMI command port */
 192         u8 acpi_enable;         /* Value to write to smi_cmd to enable ACPI */
 193         u8 acpi_disable;        /* Value to write to smi_cmd to disable ACPI */
 194         u8 S4bios_request;      /* Value to write to SMI CMD to enter S4BIOS state */
 195         u8 pstate_control;      /* Processor performance state control */
 196         u32 pm1a_event_block;   /* 32-bit Port address of Power Mgt 1a Event Reg Blk */
 197         u32 pm1b_event_block;   /* 32-bit Port address of Power Mgt 1b Event Reg Blk */
 198         u32 pm1a_control_block; /* 32-bit Port address of Power Mgt 1a Control Reg Blk */
 199         u32 pm1b_control_block; /* 32-bit Port address of Power Mgt 1b Control Reg Blk */
 200         u32 pm2_control_block;  /* 32-bit Port address of Power Mgt 2 Control Reg Blk */
 201         u32 pm_timer_block;     /* 32-bit Port address of Power Mgt Timer Ctrl Reg Blk */
 202         u32 gpe0_block;         /* 32-bit Port address of General Purpose Event 0 Reg Blk */
 203         u32 gpe1_block;         /* 32-bit Port address of General Purpose Event 1 Reg Blk */
 204         u8 pm1_event_length;    /* Byte Length of ports at pm1x_event_block */
 205         u8 pm1_control_length;  /* Byte Length of ports at pm1x_control_block */
 206         u8 pm2_control_length;  /* Byte Length of ports at pm2_control_block */
 207         u8 pm_timer_length;     /* Byte Length of ports at pm_timer_block */
 208         u8 gpe0_block_length;   /* Byte Length of ports at gpe0_block */
 209         u8 gpe1_block_length;   /* Byte Length of ports at gpe1_block */
 210         u8 gpe1_base;           /* Offset in GPE number space where GPE1 events start */
 211         u8 cst_control;         /* Support for the _CST object and C States change notification */
 212         u16 C2latency;          /* Worst case HW latency to enter/exit C2 state */
 213         u16 C3latency;          /* Worst case HW latency to enter/exit C3 state */
 214         u16 flush_size;         /* Processor's memory cache line width, in bytes */
 215         u16 flush_stride;       /* Number of flush strides that need to be read */
 216         u8 duty_offset;         /* Processor duty cycle index in processor's P_CNT reg */
 217         u8 duty_width;          /* Processor duty cycle value bit width in P_CNT register */
 218         u8 day_alarm;           /* Index to day-of-month alarm in RTC CMOS RAM */
 219         u8 month_alarm;         /* Index to month-of-year alarm in RTC CMOS RAM */
 220         u8 century;             /* Index to century in RTC CMOS RAM */
 221         u16 boot_flags;         /* IA-PC Boot Architecture Flags (see below for individual flags) */
 222         u8 reserved;            /* Reserved, must be zero */
 223         u32 flags;              /* Miscellaneous flag bits (see below for individual flags) */
 224         struct acpi_generic_address reset_register;     /* 64-bit address of the Reset register */
 225         u8 reset_value;         /* Value to write to the reset_register port to reset the system */
 226         u8 reserved4[3];        /* Reserved, must be zero */
 227         u64 Xfacs;              /* 64-bit physical address of FACS */
 228         u64 Xdsdt;              /* 64-bit physical address of DSDT */
 229         struct acpi_generic_address xpm1a_event_block;  /* 64-bit Extended Power Mgt 1a Event Reg Blk address */
 230         struct acpi_generic_address xpm1b_event_block;  /* 64-bit Extended Power Mgt 1b Event Reg Blk address */
 231         struct acpi_generic_address xpm1a_control_block;        /* 64-bit Extended Power Mgt 1a Control Reg Blk address */
 232         struct acpi_generic_address xpm1b_control_block;        /* 64-bit Extended Power Mgt 1b Control Reg Blk address */
 233         struct acpi_generic_address xpm2_control_block; /* 64-bit Extended Power Mgt 2 Control Reg Blk address */
 234         struct acpi_generic_address xpm_timer_block;    /* 64-bit Extended Power Mgt Timer Ctrl Reg Blk address */
 235         struct acpi_generic_address xgpe0_block;        /* 64-bit Extended General Purpose Event 0 Reg Blk address */
 236         struct acpi_generic_address xgpe1_block;        /* 64-bit Extended General Purpose Event 1 Reg Blk address */
 237 };
 238
 239 /* FADT Boot Architecture Flags (boot_flags) */
 240
 241 #define ACPI_FADT_LEGACY_DEVICES    (1)         /* 00: [V2] System has LPC or ISA bus devices */
 242 #define ACPI_FADT_8042              (1<<1)      /* 01: [V3] System has an 8042 controller on port 60/64 */
 243 #define ACPI_FADT_NO_VGA            (1<<2)      /* 02: [V4] It is not safe to probe for VGA hardware */
 244 #define ACPI_FADT_NO_MSI            (1<<3)      /* 03: [V4] Message Signaled Interrupts (MSI) must not be enabled */
 245 #define ACPI_FADT_NO_ASPM           (1<<4)      /* 04: [V4] PCIe ASPM control must not be enabled */
 246
 247 #define FADT2_REVISION_ID               3
 248
 249 /* FADT flags */
 250
 251 #define ACPI_FADT_WBINVD            (1) /* 00: [V1] The wbinvd instruction works properly */
 252 #define ACPI_FADT_WBINVD_FLUSH      (1<<1)      /* 01: [V1] wbinvd flushes but does not invalidate caches */
 253 #define ACPI_FADT_C1_SUPPORTED      (1<<2)      /* 02: [V1] All processors support C1 state */
 254 #define ACPI_FADT_C2_MP_SUPPORTED   (1<<3)      /* 03: [V1] C2 state works on MP system */
 255 #define ACPI_FADT_POWER_BUTTON      (1<<4)      /* 04: [V1] Power button is handled as a control method device */
 256 #define ACPI_FADT_SLEEP_BUTTON      (1<<5)      /* 05: [V1] Sleep button is handled as a control method device */
 257 #define ACPI_FADT_FIXED_RTC         (1<<6)      /* 06: [V1] RTC wakeup status not in fixed register space */
 258 #define ACPI_FADT_S4_RTC_WAKE       (1<<7)      /* 07: [V1] RTC alarm can wake system from S4 */
 259 #define ACPI_FADT_32BIT_TIMER       (1<<8)      /* 08: [V1] ACPI timer width is 32-bit (0=24-bit) */
 260 #define ACPI_FADT_DOCKING_SUPPORTED (1<<9)      /* 09: [V1] Docking supported */
 261 #define ACPI_FADT_RESET_REGISTER    (1<<10)     /* 10: [V2] System reset via the FADT RESET_REG supported */
 262 #define ACPI_FADT_SEALED_CASE       (1<<11)     /* 11: [V3] No internal expansion capabilities and case is sealed */
 263 #define ACPI_FADT_HEADLESS          (1<<12)     /* 12: [V3] No local video capabilities or local input devices */
 264 #define ACPI_FADT_SLEEP_TYPE        (1<<13)     /* 13: [V3] Must execute native instruction after writing  SLP_TYPx register */
 265 #define ACPI_FADT_PCI_EXPRESS_WAKE  (1<<14)     /* 14: [V4] System supports PCIEXP_WAKE (STS/EN) bits (ACPI 3.0) */
 266 #define ACPI_FADT_PLATFORM_CLOCK    (1<<15)     /* 15: [V4] OSPM should use platform-provided timer (ACPI 3.0) */
 267 #define ACPI_FADT_S4_RTC_VALID      (1<<16)     /* 16: [V4] Contents of RTC_STS valid after S4 wake (ACPI 3.0) */
 268 #define ACPI_FADT_REMOTE_POWER_ON   (1<<17)     /* 17: [V4] System is compatible with remote power on (ACPI 3.0) */
 269 #define ACPI_FADT_APIC_CLUSTER      (1<<18)     /* 18: [V4] All local APICs must use cluster model (ACPI 3.0) */
 270 #define ACPI_FADT_APIC_PHYSICAL     (1<<19)     /* 19: [V4] All local x_aPICs must use physical dest mode (ACPI 3.0) */
 271
 272 /* FADT Prefered Power Management Profiles */
 273
 274 enum acpi_prefered_pm_profiles {
 275         PM_UNSPECIFIED = 0,
 276         PM_DESKTOP = 1,
 277         PM_MOBILE = 2,
 278         PM_WORKSTATION = 3,
 279         PM_ENTERPRISE_SERVER = 4,
 280         PM_SOHO_SERVER = 5,
 281         PM_APPLIANCE_PC = 6
 282 };
 283
 284 /* Reset to default packing */
 285
 286 #pragma pack()
 287
 288 #define ACPI_FADT_OFFSET(f)             (u8) ACPI_OFFSET (struct acpi_table_fadt, f)
 289
 290 union acpi_name_union {
 291         u32 integer;
 292         char ascii[4];
 293 };
 294
 295 /*
 296  * Internal ACPI Table Descriptor. One per ACPI table
 297  */
 298 struct acpi_table_desc {
 299         acpi_physical_address address;
 300         struct acpi_table_header *pointer;
 301         u32 length;             /* Length fixed at 32 bits */
 302         union acpi_name_union signature;
 303         acpi_owner_id owner_id;
 304         u8 flags;
 305 };
 306
 307 /* Flags for above */
 308
 309 #define ACPI_TABLE_ORIGIN_UNKNOWN       (0)
 310 #define ACPI_TABLE_ORIGIN_MAPPED        (1)
 311 #define ACPI_TABLE_ORIGIN_ALLOCATED     (2)
 312 #define ACPI_TABLE_ORIGIN_OVERRIDE      (4)
 313 #define ACPI_TABLE_ORIGIN_MASK          (7)
 314 #define ACPI_TABLE_IS_LOADED            (8)
 315
 316 /*
 317  * Get the remaining ACPI tables
 318  */
 319
 320 #include <acpi/actbl1.h>
 321
 322 #endif                          /* __ACTBL_H__ */