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1/******************************************************************************
2 *
793c2388 3 * Name: actbl.h - Basic ACPI Table Definitions
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4 *
5 *****************************************************************************/
6
7/*
7735ca0e 8 * Copyright (C) 2000 - 2017, Intel Corp.
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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
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47/*******************************************************************************
48 *
49 * Fundamental ACPI tables
50 *
51 * This file contains definitions for the ACPI tables that are directly consumed
52 * by ACPICA. All other tables are consumed by the OS-dependent ACPI-related
53 * device drivers and other OS support code.
54 *
55 * The RSDP and FACS do not use the common ACPI table header. All other ACPI
56 * tables use the header.
57 *
58 ******************************************************************************/
59
defba1d8 60/*
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61 * Values for description table header signatures for tables defined in this
62 * file. Useful because they make it more difficult to inadvertently type in
63 * the wrong signature.
1da177e4 64 */
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65#define ACPI_SIG_DSDT "DSDT" /* Differentiated System Description Table */
66#define ACPI_SIG_FADT "FACP" /* Fixed ACPI Description Table */
67#define ACPI_SIG_FACS "FACS" /* Firmware ACPI Control Structure */
fe536995 68#define ACPI_SIG_OSDT "OSDT" /* Override System Description Table */
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69#define ACPI_SIG_PSDT "PSDT" /* Persistent System Description Table */
70#define ACPI_SIG_RSDP "RSD PTR " /* Root System Description Pointer */
71#define ACPI_SIG_RSDT "RSDT" /* Root System Description Table */
72#define ACPI_SIG_XSDT "XSDT" /* Extended System Description Table */
73#define ACPI_SIG_SSDT "SSDT" /* Secondary System Description Table */
8f34890d 74#define ACPI_RSDP_NAME "RSDP" /* Short name for RSDP, not signature */
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75
76/*
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77 * All tables and structures must be byte-packed to match the ACPI
78 * specification, since the tables are provided by the system BIOS
1da177e4 79 */
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80#pragma pack(1)
81
82/*
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83 * Note: C bitfields are not used for this reason:
84 *
85 * "Bitfields are great and easy to read, but unfortunately the C language
86 * does not specify the layout of bitfields in memory, which means they are
87 * essentially useless for dealing with packed data in on-disk formats or
88 * binary wire protocols." (Or ACPI tables and buffers.) "If you ask me,
89 * this decision was a design error in C. Ritchie could have picked an order
90 * and stuck with it." Norman Ramsey.
91 * See http://stackoverflow.com/a/1053662/41661
1da177e4 92 */
1da177e4 93
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94/*******************************************************************************
95 *
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96 * Master ACPI Table Header. This common header is used by all ACPI tables
97 * except the RSDP and FACS.
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98 *
99 ******************************************************************************/
1da177e4 100
793c2388 101struct acpi_table_header {
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102 char signature[ACPI_NAME_SIZE]; /* ASCII table signature */
103 u32 length; /* Length of table in bytes, including this header */
80187431 104 u8 revision; /* ACPI Specification minor version number */
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105 u8 checksum; /* To make sum of entire table == 0 */
106 char oem_id[ACPI_OEM_ID_SIZE]; /* ASCII OEM identification */
107 char oem_table_id[ACPI_OEM_TABLE_ID_SIZE]; /* ASCII OEM table identification */
108 u32 oem_revision; /* OEM revision number */
109 char asl_compiler_id[ACPI_NAME_SIZE]; /* ASCII ASL compiler vendor ID */
110 u32 asl_compiler_revision; /* ASL compiler version */
111};
1da177e4 112
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113/*******************************************************************************
114 *
793c2388 115 * GAS - Generic Address Structure (ACPI 2.0+)
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116 *
117 * Note: Since this structure is used in the ACPI tables, it is byte aligned.
80187431 118 * If misaligned access is not supported by the hardware, accesses to the
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119 * 64-bit Address field must be performed with care.
120 *
121 ******************************************************************************/
122
793c2388 123struct acpi_generic_address {
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124 u8 space_id; /* Address space where struct or register exists */
125 u8 bit_width; /* Size in bits of given register */
126 u8 bit_offset; /* Bit offset within the register */
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127 u8 access_width; /* Minimum Access size (ACPI 3.0) */
128 u64 address; /* 64-bit address of struct or register */
129};
1da177e4 130
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131/*******************************************************************************
132 *
133 * RSDP - Root System Description Pointer (Signature is "RSD PTR ")
6e2d5ebd 134 * Version 2
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135 *
136 ******************************************************************************/
137
f3d2e786 138struct acpi_table_rsdp {
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139 char signature[8]; /* ACPI signature, contains "RSD PTR " */
140 u8 checksum; /* ACPI 1.0 checksum */
f3d2e786 141 char oem_id[ACPI_OEM_ID_SIZE]; /* OEM identification */
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142 u8 revision; /* Must be (0) for ACPI 1.0 or (2) for ACPI 2.0+ */
143 u32 rsdt_physical_address; /* 32-bit physical address of the RSDT */
144 u32 length; /* Table length in bytes, including header (ACPI 2.0+) */
145 u64 xsdt_physical_address; /* 64-bit physical address of the XSDT (ACPI 2.0+) */
146 u8 extended_checksum; /* Checksum of entire table (ACPI 2.0+) */
147 u8 reserved[3]; /* Reserved, must be zero */
148};
1da177e4 149
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150/* Standalone struct for the ACPI 1.0 RSDP */
151
152struct acpi_rsdp_common {
153 char signature[8];
154 u8 checksum;
155 char oem_id[ACPI_OEM_ID_SIZE];
156 u8 revision;
157 u32 rsdt_physical_address;
158};
159
160/* Standalone struct for the extended part of the RSDP (ACPI 2.0+) */
161
162struct acpi_rsdp_extension {
163 u32 length;
164 u64 xsdt_physical_address;
165 u8 extended_checksum;
166 u8 reserved[3];
167};
1da177e4 168
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169/*******************************************************************************
170 *
171 * RSDT/XSDT - Root System Description Tables
6e2d5ebd 172 * Version 1 (both)
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173 *
174 ******************************************************************************/
1da177e4 175
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176struct acpi_table_rsdt {
177 struct acpi_table_header header; /* Common ACPI table header */
178 u32 table_offset_entry[1]; /* Array of pointers to ACPI tables */
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179};
180
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181struct acpi_table_xsdt {
182 struct acpi_table_header header; /* Common ACPI table header */
183 u64 table_offset_entry[1]; /* Array of pointers to ACPI tables */
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184};
185
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186#define ACPI_RSDT_ENTRY_SIZE (sizeof (u32))
187#define ACPI_XSDT_ENTRY_SIZE (sizeof (u64))
188
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189/*******************************************************************************
190 *
191 * FACS - Firmware ACPI Control Structure (FACS)
192 *
193 ******************************************************************************/
194
f3d2e786 195struct acpi_table_facs {
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196 char signature[4]; /* ASCII table signature */
197 u32 length; /* Length of structure, in bytes */
198 u32 hardware_signature; /* Hardware configuration signature */
199 u32 firmware_waking_vector; /* 32-bit physical address of the Firmware Waking Vector */
200 u32 global_lock; /* Global Lock for shared hardware resources */
f3d2e786 201 u32 flags;
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202 u64 xfirmware_waking_vector; /* 64-bit version of the Firmware Waking Vector (ACPI 2.0+) */
203 u8 version; /* Version of this table (ACPI 2.0+) */
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204 u8 reserved[3]; /* Reserved, must be zero */
205 u32 ospm_flags; /* Flags to be set by OSPM (ACPI 4.0) */
206 u8 reserved1[24]; /* Reserved, must be zero */
793c2388 207};
1da177e4 208
6e2d5ebd 209/* Masks for global_lock flag field above */
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210
211#define ACPI_GLOCK_PENDING (1) /* 00: Pending global lock ownership */
212#define ACPI_GLOCK_OWNED (1<<1) /* 01: Global lock is owned */
213
6e2d5ebd 214/* Masks for Flags field above */
f3d2e786 215
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216#define ACPI_FACS_S4_BIOS_PRESENT (1) /* 00: S4BIOS support is present */
217#define ACPI_FACS_64BIT_WAKE (1<<1) /* 01: 64-bit wake vector supported (ACPI 4.0) */
f3d2e786 218
6e2d5ebd 219/* Masks for ospm_flags field above */
f3d2e786 220
eb2289ba 221#define ACPI_FACS_64BIT_ENVIRONMENT (1) /* 00: 64-bit wake environment is required (ACPI 4.0) */
1da177e4 222
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223/*******************************************************************************
224 *
225 * FADT - Fixed ACPI Description Table (Signature "FACP")
b94cd811 226 * Version 6
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227 *
228 ******************************************************************************/
229
230/* Fields common to all versions of the FADT */
231
f3d2e786 232struct acpi_table_fadt {
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233 struct acpi_table_header header; /* Common ACPI table header */
234 u32 facs; /* 32-bit physical address of FACS */
235 u32 dsdt; /* 32-bit physical address of DSDT */
236 u8 model; /* System Interrupt Model (ACPI 1.0) - not used in ACPI 2.0+ */
237 u8 preferred_profile; /* Conveys preferred power management profile to OSPM. */
238 u16 sci_interrupt; /* System vector of SCI interrupt */
239 u32 smi_command; /* 32-bit Port address of SMI command port */
240 u8 acpi_enable; /* Value to write to SMI_CMD to enable ACPI */
241 u8 acpi_disable; /* Value to write to SMI_CMD to disable ACPI */
242 u8 s4_bios_request; /* Value to write to SMI_CMD to enter S4BIOS state */
243 u8 pstate_control; /* Processor performance state control */
244 u32 pm1a_event_block; /* 32-bit port address of Power Mgt 1a Event Reg Blk */
245 u32 pm1b_event_block; /* 32-bit port address of Power Mgt 1b Event Reg Blk */
246 u32 pm1a_control_block; /* 32-bit port address of Power Mgt 1a Control Reg Blk */
247 u32 pm1b_control_block; /* 32-bit port address of Power Mgt 1b Control Reg Blk */
248 u32 pm2_control_block; /* 32-bit port address of Power Mgt 2 Control Reg Blk */
249 u32 pm_timer_block; /* 32-bit port address of Power Mgt Timer Ctrl Reg Blk */
250 u32 gpe0_block; /* 32-bit port address of General Purpose Event 0 Reg Blk */
251 u32 gpe1_block; /* 32-bit port address of General Purpose Event 1 Reg Blk */
252 u8 pm1_event_length; /* Byte Length of ports at pm1x_event_block */
253 u8 pm1_control_length; /* Byte Length of ports at pm1x_control_block */
254 u8 pm2_control_length; /* Byte Length of ports at pm2_control_block */
255 u8 pm_timer_length; /* Byte Length of ports at pm_timer_block */
256 u8 gpe0_block_length; /* Byte Length of ports at gpe0_block */
257 u8 gpe1_block_length; /* Byte Length of ports at gpe1_block */
258 u8 gpe1_base; /* Offset in GPE number space where GPE1 events start */
259 u8 cst_control; /* Support for the _CST object and C-States change notification */
260 u16 c2_latency; /* Worst case HW latency to enter/exit C2 state */
261 u16 c3_latency; /* Worst case HW latency to enter/exit C3 state */
262 u16 flush_size; /* Processor memory cache line width, in bytes */
263 u16 flush_stride; /* Number of flush strides that need to be read */
264 u8 duty_offset; /* Processor duty cycle index in processor P_CNT reg */
265 u8 duty_width; /* Processor duty cycle value bit width in P_CNT register */
266 u8 day_alarm; /* Index to day-of-month alarm in RTC CMOS RAM */
267 u8 month_alarm; /* Index to month-of-year alarm in RTC CMOS RAM */
268 u8 century; /* Index to century in RTC CMOS RAM */
269 u16 boot_flags; /* IA-PC Boot Architecture Flags (see below for individual flags) */
270 u8 reserved; /* Reserved, must be zero */
271 u32 flags; /* Miscellaneous flag bits (see below for individual flags) */
272 struct acpi_generic_address reset_register; /* 64-bit address of the Reset register */
273 u8 reset_value; /* Value to write to the reset_register port to reset the system */
274 u16 arm_boot_flags; /* ARM-Specific Boot Flags (see below for individual flags) (ACPI 5.1) */
275 u8 minor_revision; /* FADT Minor Revision (ACPI 5.1) */
276 u64 Xfacs; /* 64-bit physical address of FACS */
277 u64 Xdsdt; /* 64-bit physical address of DSDT */
278 struct acpi_generic_address xpm1a_event_block; /* 64-bit Extended Power Mgt 1a Event Reg Blk address */
279 struct acpi_generic_address xpm1b_event_block; /* 64-bit Extended Power Mgt 1b Event Reg Blk address */
280 struct acpi_generic_address xpm1a_control_block; /* 64-bit Extended Power Mgt 1a Control Reg Blk address */
281 struct acpi_generic_address xpm1b_control_block; /* 64-bit Extended Power Mgt 1b Control Reg Blk address */
282 struct acpi_generic_address xpm2_control_block; /* 64-bit Extended Power Mgt 2 Control Reg Blk address */
283 struct acpi_generic_address xpm_timer_block; /* 64-bit Extended Power Mgt Timer Ctrl Reg Blk address */
284 struct acpi_generic_address xgpe0_block; /* 64-bit Extended General Purpose Event 0 Reg Blk address */
285 struct acpi_generic_address xgpe1_block; /* 64-bit Extended General Purpose Event 1 Reg Blk address */
286 struct acpi_generic_address sleep_control; /* 64-bit Sleep Control register (ACPI 5.0) */
287 struct acpi_generic_address sleep_status; /* 64-bit Sleep Status register (ACPI 5.0) */
288 u64 hypervisor_id; /* Hypervisor Vendor ID (ACPI 6.0) */
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289};
290
9eb1105b 291/* Masks for FADT IA-PC Boot Architecture Flags (boot_flags) [Vx]=Introduced in this FADT revision */
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292
293#define ACPI_FADT_LEGACY_DEVICES (1) /* 00: [V2] System has LPC or ISA bus devices */
294#define ACPI_FADT_8042 (1<<1) /* 01: [V3] System has an 8042 controller on port 60/64 */
295#define ACPI_FADT_NO_VGA (1<<2) /* 02: [V4] It is not safe to probe for VGA hardware */
296#define ACPI_FADT_NO_MSI (1<<3) /* 03: [V4] Message Signaled Interrupts (MSI) must not be enabled */
297#define ACPI_FADT_NO_ASPM (1<<4) /* 04: [V4] PCIe ASPM control must not be enabled */
2355e10f 298#define ACPI_FADT_NO_CMOS_RTC (1<<5) /* 05: [V5] No CMOS real-time clock present */
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299
300#define FADT2_REVISION_ID 3
301
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302/* Masks for FADT ARM Boot Architecture Flags (arm_boot_flags) ACPI 5.1 */
303
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304#define ACPI_FADT_PSCI_COMPLIANT (1) /* 00: [V5+] PSCI 0.2+ is implemented */
305#define ACPI_FADT_PSCI_USE_HVC (1<<1) /* 01: [V5+] HVC must be used instead of SMC as the PSCI conduit */
9eb1105b 306
6e2d5ebd 307/* Masks for FADT flags */
f3d2e786 308
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309#define ACPI_FADT_WBINVD (1) /* 00: [V1] The WBINVD instruction works properly */
310#define ACPI_FADT_WBINVD_FLUSH (1<<1) /* 01: [V1] WBINVD flushes but does not invalidate caches */
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311#define ACPI_FADT_C1_SUPPORTED (1<<2) /* 02: [V1] All processors support C1 state */
312#define ACPI_FADT_C2_MP_SUPPORTED (1<<3) /* 03: [V1] C2 state works on MP system */
313#define ACPI_FADT_POWER_BUTTON (1<<4) /* 04: [V1] Power button is handled as a control method device */
314#define ACPI_FADT_SLEEP_BUTTON (1<<5) /* 05: [V1] Sleep button is handled as a control method device */
80187431 315#define ACPI_FADT_FIXED_RTC (1<<6) /* 06: [V1] RTC wakeup status is not in fixed register space */
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316#define ACPI_FADT_S4_RTC_WAKE (1<<7) /* 07: [V1] RTC alarm can wake system from S4 */
317#define ACPI_FADT_32BIT_TIMER (1<<8) /* 08: [V1] ACPI timer width is 32-bit (0=24-bit) */
318#define ACPI_FADT_DOCKING_SUPPORTED (1<<9) /* 09: [V1] Docking supported */
319#define ACPI_FADT_RESET_REGISTER (1<<10) /* 10: [V2] System reset via the FADT RESET_REG supported */
320#define ACPI_FADT_SEALED_CASE (1<<11) /* 11: [V3] No internal expansion capabilities and case is sealed */
321#define ACPI_FADT_HEADLESS (1<<12) /* 12: [V3] No local video capabilities or local input devices */
322#define ACPI_FADT_SLEEP_TYPE (1<<13) /* 13: [V3] Must execute native instruction after writing SLP_TYPx register */
323#define ACPI_FADT_PCI_EXPRESS_WAKE (1<<14) /* 14: [V4] System supports PCIEXP_WAKE (STS/EN) bits (ACPI 3.0) */
324#define ACPI_FADT_PLATFORM_CLOCK (1<<15) /* 15: [V4] OSPM should use platform-provided timer (ACPI 3.0) */
325#define ACPI_FADT_S4_RTC_VALID (1<<16) /* 16: [V4] Contents of RTC_STS valid after S4 wake (ACPI 3.0) */
326#define ACPI_FADT_REMOTE_POWER_ON (1<<17) /* 17: [V4] System is compatible with remote power on (ACPI 3.0) */
327#define ACPI_FADT_APIC_CLUSTER (1<<18) /* 18: [V4] All local APICs must use cluster model (ACPI 3.0) */
ba494bee 328#define ACPI_FADT_APIC_PHYSICAL (1<<19) /* 19: [V4] All local xAPICs must use physical dest mode (ACPI 3.0) */
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329#define ACPI_FADT_HW_REDUCED (1<<20) /* 20: [V5] ACPI hardware is not implemented (ACPI 5.0) */
330#define ACPI_FADT_LOW_POWER_S0 (1<<21) /* 21: [V5] S0 power savings are equal or better than S3 (ACPI 5.0) */
993958fe 331
25985edc 332/* Values for preferred_profile (Preferred Power Management Profiles) */
1da177e4 333
80187431 334enum acpi_preferred_pm_profiles {
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335 PM_UNSPECIFIED = 0,
336 PM_DESKTOP = 1,
337 PM_MOBILE = 2,
338 PM_WORKSTATION = 3,
339 PM_ENTERPRISE_SERVER = 4,
340 PM_SOHO_SERVER = 5,
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341 PM_APPLIANCE_PC = 6,
342 PM_PERFORMANCE_SERVER = 7,
343 PM_TABLET = 8
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344};
345
aeb823bb 346/* Values for sleep_status and sleep_control registers (V5+ FADT) */
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347
348#define ACPI_X_WAKE_STATUS 0x80
349#define ACPI_X_SLEEP_TYPE_MASK 0x1C
350#define ACPI_X_SLEEP_TYPE_POSITION 0x02
351#define ACPI_X_SLEEP_ENABLE 0x20
352
793c2388 353/* Reset to default packing */
1da177e4 354
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355#pragma pack()
356
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357/*
358 * Internal table-related structures
359 */
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360union acpi_name_union {
361 u32 integer;
362 char ascii[4];
363};
364
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365/* Internal ACPI Table Descriptor. One per ACPI table. */
366
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367struct acpi_table_desc {
368 acpi_physical_address address;
369 struct acpi_table_header *pointer;
80187431 370 u32 length; /* Length fixed at 32 bits (fixed in table header) */
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371 union acpi_name_union signature;
372 acpi_owner_id owner_id;
373 u8 flags;
174cc718 374 u16 validation_count;
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375};
376
6e2d5ebd 377/* Masks for Flags field above */
50df4d8b 378
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379#define ACPI_TABLE_ORIGIN_EXTERNAL_VIRTUAL (0) /* Virtual address, external maintained */
380#define ACPI_TABLE_ORIGIN_INTERNAL_PHYSICAL (1) /* Physical address, internally mapped */
381#define ACPI_TABLE_ORIGIN_INTERNAL_VIRTUAL (2) /* Virtual address, internallly allocated */
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382#define ACPI_TABLE_ORIGIN_MASK (3)
383#define ACPI_TABLE_IS_LOADED (8)
50df4d8b 384
1da177e4 385/*
f3d2e786 386 * Get the remaining ACPI tables
1da177e4 387 */
f3d2e786 388#include <acpi/actbl1.h>
b24aad44 389#include <acpi/actbl2.h>
c5bd6537 390#include <acpi/actbl3.h>
ad363f80 391
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392/* Macros used to generate offsets to specific table fields */
393
394#define ACPI_FADT_OFFSET(f) (u16) ACPI_OFFSET (struct acpi_table_fadt, f)
395
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396/*
397 * Sizes of the various flavors of FADT. We need to look closely
398 * at the FADT length because the version number essentially tells
399 * us nothing because of many BIOS bugs where the version does not
400 * match the expected length. In other words, the length of the
401 * FADT is the bottom line as to what the version really is.
402 *
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403 * For reference, the values below are as follows:
404 * FADT V1 size: 0x074
405 * FADT V2 size: 0x084
406 * FADT V3 size: 0x0F4
407 * FADT V4 size: 0x0F4
408 * FADT V5 size: 0x10C
409 * FADT V6 size: 0x114
64b3db22 410 */
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411#define ACPI_FADT_V1_SIZE (u32) (ACPI_FADT_OFFSET (flags) + 4)
412#define ACPI_FADT_V2_SIZE (u32) (ACPI_FADT_OFFSET (minor_revision) + 1)
413#define ACPI_FADT_V3_SIZE (u32) (ACPI_FADT_OFFSET (sleep_control))
414#define ACPI_FADT_V5_SIZE (u32) (ACPI_FADT_OFFSET (hypervisor_id))
415#define ACPI_FADT_V6_SIZE (u32) (sizeof (struct acpi_table_fadt))
64b3db22 416
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417#define ACPI_FADT_CONFORMANCE "ACPI 6.1 (FADT version 6)"
418
4be44fcd 419#endif /* __ACTBL_H__ */