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1/******************************************************************************
2 *
3 * Name: actbl.h - Basic ACPI Table Definitions
4 *
5 *****************************************************************************/
6
7/*
8 * Copyright (C) 2000 - 2011, 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 *
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
60/*
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.
64 */
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 */
68#define ACPI_SIG_PSDT "PSDT" /* Persistent System Description Table */
69#define ACPI_SIG_RSDP "RSD PTR " /* Root System Description Pointer */
70#define ACPI_SIG_RSDT "RSDT" /* Root System Description Table */
71#define ACPI_SIG_XSDT "XSDT" /* Extended System Description Table */
72#define ACPI_SIG_SSDT "SSDT" /* Secondary System Description Table */
73#define ACPI_RSDP_NAME "RSDP" /* Short name for RSDP, not signature */
74
75/*
76 * All tables and structures must be byte-packed to match the ACPI
77 * specification, since the tables are provided by the system BIOS
78 */
79#pragma pack(1)
80
81/*
82 * Note about bitfields: The u8 type is used for bitfields in ACPI tables.
83 * This is the only type that is even remotely portable. Anything else is not
84 * portable, so do not use any other bitfield types.
85 */
86
87/*******************************************************************************
88 *
89 * Master ACPI Table Header. This common header is used by all ACPI tables
90 * except the RSDP and FACS.
91 *
92 ******************************************************************************/
93
94struct acpi_table_header {
95 char signature[ACPI_NAME_SIZE]; /* ASCII table signature */
96 u32 length; /* Length of table in bytes, including this header */
97 u8 revision; /* ACPI Specification minor version # */
98 u8 checksum; /* To make sum of entire table == 0 */
99 char oem_id[ACPI_OEM_ID_SIZE]; /* ASCII OEM identification */
100 char oem_table_id[ACPI_OEM_TABLE_ID_SIZE]; /* ASCII OEM table identification */
101 u32 oem_revision; /* OEM revision number */
102 char asl_compiler_id[ACPI_NAME_SIZE]; /* ASCII ASL compiler vendor ID */
103 u32 asl_compiler_revision; /* ASL compiler version */
104};
105
106/*******************************************************************************
107 *
108 * GAS - Generic Address Structure (ACPI 2.0+)
109 *
110 * Note: Since this structure is used in the ACPI tables, it is byte aligned.
111 * If misaliged access is not supported by the hardware, accesses to the
112 * 64-bit Address field must be performed with care.
113 *
114 ******************************************************************************/
115
116struct acpi_generic_address {
117 u8 space_id; /* Address space where struct or register exists */
118 u8 bit_width; /* Size in bits of given register */
119 u8 bit_offset; /* Bit offset within the register */
120 u8 access_width; /* Minimum Access size (ACPI 3.0) */
121 u64 address; /* 64-bit address of struct or register */
122};
123
124/*******************************************************************************
125 *
126 * RSDP - Root System Description Pointer (Signature is "RSD PTR ")
127 * Version 2
128 *
129 ******************************************************************************/
130
131struct acpi_table_rsdp {
132 char signature[8]; /* ACPI signature, contains "RSD PTR " */
133 u8 checksum; /* ACPI 1.0 checksum */
134 char oem_id[ACPI_OEM_ID_SIZE]; /* OEM identification */
135 u8 revision; /* Must be (0) for ACPI 1.0 or (2) for ACPI 2.0+ */
136 u32 rsdt_physical_address; /* 32-bit physical address of the RSDT */
137 u32 length; /* Table length in bytes, including header (ACPI 2.0+) */
138 u64 xsdt_physical_address; /* 64-bit physical address of the XSDT (ACPI 2.0+) */
139 u8 extended_checksum; /* Checksum of entire table (ACPI 2.0+) */
140 u8 reserved[3]; /* Reserved, must be zero */
141};
142
143#define ACPI_RSDP_REV0_SIZE 20 /* Size of original ACPI 1.0 RSDP */
144
145/*******************************************************************************
146 *
147 * RSDT/XSDT - Root System Description Tables
148 * Version 1 (both)
149 *
150 ******************************************************************************/
151
152struct acpi_table_rsdt {
153 struct acpi_table_header header; /* Common ACPI table header */
154 u32 table_offset_entry[1]; /* Array of pointers to ACPI tables */
155};
156
157struct acpi_table_xsdt {
158 struct acpi_table_header header; /* Common ACPI table header */
159 u64 table_offset_entry[1]; /* Array of pointers to ACPI tables */
160};
161
162/*******************************************************************************
163 *
164 * FACS - Firmware ACPI Control Structure (FACS)
165 *
166 ******************************************************************************/
167
168struct acpi_table_facs {
169 char signature[4]; /* ASCII table signature */
170 u32 length; /* Length of structure, in bytes */
171 u32 hardware_signature; /* Hardware configuration signature */
172 u32 firmware_waking_vector; /* 32-bit physical address of the Firmware Waking Vector */
173 u32 global_lock; /* Global Lock for shared hardware resources */
174 u32 flags;
175 u64 xfirmware_waking_vector; /* 64-bit version of the Firmware Waking Vector (ACPI 2.0+) */
176 u8 version; /* Version of this table (ACPI 2.0+) */
177 u8 reserved[3]; /* Reserved, must be zero */
178 u32 ospm_flags; /* Flags to be set by OSPM (ACPI 4.0) */
179 u8 reserved1[24]; /* Reserved, must be zero */
180};
181
182/* Masks for global_lock flag field above */
183
184#define ACPI_GLOCK_PENDING (1) /* 00: Pending global lock ownership */
185#define ACPI_GLOCK_OWNED (1<<1) /* 01: Global lock is owned */
186
187/* Masks for Flags field above */
188
189#define ACPI_FACS_S4_BIOS_PRESENT (1) /* 00: S4BIOS support is present */
190#define ACPI_FACS_64BIT_WAKE (1<<1) /* 01: 64-bit wake vector supported (ACPI 4.0) */
191
192/* Masks for ospm_flags field above */
193
194#define ACPI_FACS_64BIT_ENVIRONMENT (1) /* 00: 64-bit wake environment is required (ACPI 4.0) */
195
196/*******************************************************************************
197 *
198 * FADT - Fixed ACPI Description Table (Signature "FACP")
199 * Version 4
200 *
201 ******************************************************************************/
202
203/* Fields common to all versions of the FADT */
204
205struct acpi_table_fadt {
206 struct acpi_table_header header; /* Common ACPI table header */
207 u32 facs; /* 32-bit physical address of FACS */
208 u32 dsdt; /* 32-bit physical address of DSDT */
209 u8 model; /* System Interrupt Model (ACPI 1.0) - not used in ACPI 2.0+ */
210 u8 preferred_profile; /* Conveys preferred power management profile to OSPM. */
211 u16 sci_interrupt; /* System vector of SCI interrupt */
212 u32 smi_command; /* 32-bit Port address of SMI command port */
213 u8 acpi_enable; /* Value to write to smi_cmd to enable ACPI */
214 u8 acpi_disable; /* Value to write to smi_cmd to disable ACPI */
215 u8 S4bios_request; /* Value to write to SMI CMD to enter S4BIOS state */
216 u8 pstate_control; /* Processor performance state control */
217 u32 pm1a_event_block; /* 32-bit Port address of Power Mgt 1a Event Reg Blk */
218 u32 pm1b_event_block; /* 32-bit Port address of Power Mgt 1b Event Reg Blk */
219 u32 pm1a_control_block; /* 32-bit Port address of Power Mgt 1a Control Reg Blk */
220 u32 pm1b_control_block; /* 32-bit Port address of Power Mgt 1b Control Reg Blk */
221 u32 pm2_control_block; /* 32-bit Port address of Power Mgt 2 Control Reg Blk */
222 u32 pm_timer_block; /* 32-bit Port address of Power Mgt Timer Ctrl Reg Blk */
223 u32 gpe0_block; /* 32-bit Port address of General Purpose Event 0 Reg Blk */
224 u32 gpe1_block; /* 32-bit Port address of General Purpose Event 1 Reg Blk */
225 u8 pm1_event_length; /* Byte Length of ports at pm1x_event_block */
226 u8 pm1_control_length; /* Byte Length of ports at pm1x_control_block */
227 u8 pm2_control_length; /* Byte Length of ports at pm2_control_block */
228 u8 pm_timer_length; /* Byte Length of ports at pm_timer_block */
229 u8 gpe0_block_length; /* Byte Length of ports at gpe0_block */
230 u8 gpe1_block_length; /* Byte Length of ports at gpe1_block */
231 u8 gpe1_base; /* Offset in GPE number space where GPE1 events start */
232 u8 cst_control; /* Support for the _CST object and C States change notification */
233 u16 C2latency; /* Worst case HW latency to enter/exit C2 state */
234 u16 C3latency; /* Worst case HW latency to enter/exit C3 state */
235 u16 flush_size; /* Processor's memory cache line width, in bytes */
236 u16 flush_stride; /* Number of flush strides that need to be read */
237 u8 duty_offset; /* Processor duty cycle index in processor's P_CNT reg */
238 u8 duty_width; /* Processor duty cycle value bit width in P_CNT register */
239 u8 day_alarm; /* Index to day-of-month alarm in RTC CMOS RAM */
240 u8 month_alarm; /* Index to month-of-year alarm in RTC CMOS RAM */
241 u8 century; /* Index to century in RTC CMOS RAM */
242 u16 boot_flags; /* IA-PC Boot Architecture Flags (see below for individual flags) */
243 u8 reserved; /* Reserved, must be zero */
244 u32 flags; /* Miscellaneous flag bits (see below for individual flags) */
245 struct acpi_generic_address reset_register; /* 64-bit address of the Reset register */
246 u8 reset_value; /* Value to write to the reset_register port to reset the system */
247 u8 reserved4[3]; /* Reserved, must be zero */
248 u64 Xfacs; /* 64-bit physical address of FACS */
249 u64 Xdsdt; /* 64-bit physical address of DSDT */
250 struct acpi_generic_address xpm1a_event_block; /* 64-bit Extended Power Mgt 1a Event Reg Blk address */
251 struct acpi_generic_address xpm1b_event_block; /* 64-bit Extended Power Mgt 1b Event Reg Blk address */
252 struct acpi_generic_address xpm1a_control_block; /* 64-bit Extended Power Mgt 1a Control Reg Blk address */
253 struct acpi_generic_address xpm1b_control_block; /* 64-bit Extended Power Mgt 1b Control Reg Blk address */
254 struct acpi_generic_address xpm2_control_block; /* 64-bit Extended Power Mgt 2 Control Reg Blk address */
255 struct acpi_generic_address xpm_timer_block; /* 64-bit Extended Power Mgt Timer Ctrl Reg Blk address */
256 struct acpi_generic_address xgpe0_block; /* 64-bit Extended General Purpose Event 0 Reg Blk address */
257 struct acpi_generic_address xgpe1_block; /* 64-bit Extended General Purpose Event 1 Reg Blk address */
258};
259
260/* Masks for FADT Boot Architecture Flags (boot_flags) */
261
262#define ACPI_FADT_LEGACY_DEVICES (1) /* 00: [V2] System has LPC or ISA bus devices */
263#define ACPI_FADT_8042 (1<<1) /* 01: [V3] System has an 8042 controller on port 60/64 */
264#define ACPI_FADT_NO_VGA (1<<2) /* 02: [V4] It is not safe to probe for VGA hardware */
265#define ACPI_FADT_NO_MSI (1<<3) /* 03: [V4] Message Signaled Interrupts (MSI) must not be enabled */
266#define ACPI_FADT_NO_ASPM (1<<4) /* 04: [V4] PCIe ASPM control must not be enabled */
267
268#define FADT2_REVISION_ID 3
269
270/* Masks for FADT flags */
271
272#define ACPI_FADT_WBINVD (1) /* 00: [V1] The wbinvd instruction works properly */
273#define ACPI_FADT_WBINVD_FLUSH (1<<1) /* 01: [V1] wbinvd flushes but does not invalidate caches */
274#define ACPI_FADT_C1_SUPPORTED (1<<2) /* 02: [V1] All processors support C1 state */
275#define ACPI_FADT_C2_MP_SUPPORTED (1<<3) /* 03: [V1] C2 state works on MP system */
276#define ACPI_FADT_POWER_BUTTON (1<<4) /* 04: [V1] Power button is handled as a control method device */
277#define ACPI_FADT_SLEEP_BUTTON (1<<5) /* 05: [V1] Sleep button is handled as a control method device */
278#define ACPI_FADT_FIXED_RTC (1<<6) /* 06: [V1] RTC wakeup status not in fixed register space */
279#define ACPI_FADT_S4_RTC_WAKE (1<<7) /* 07: [V1] RTC alarm can wake system from S4 */
280#define ACPI_FADT_32BIT_TIMER (1<<8) /* 08: [V1] ACPI timer width is 32-bit (0=24-bit) */
281#define ACPI_FADT_DOCKING_SUPPORTED (1<<9) /* 09: [V1] Docking supported */
282#define ACPI_FADT_RESET_REGISTER (1<<10) /* 10: [V2] System reset via the FADT RESET_REG supported */
283#define ACPI_FADT_SEALED_CASE (1<<11) /* 11: [V3] No internal expansion capabilities and case is sealed */
284#define ACPI_FADT_HEADLESS (1<<12) /* 12: [V3] No local video capabilities or local input devices */
285#define ACPI_FADT_SLEEP_TYPE (1<<13) /* 13: [V3] Must execute native instruction after writing SLP_TYPx register */
286#define ACPI_FADT_PCI_EXPRESS_WAKE (1<<14) /* 14: [V4] System supports PCIEXP_WAKE (STS/EN) bits (ACPI 3.0) */
287#define ACPI_FADT_PLATFORM_CLOCK (1<<15) /* 15: [V4] OSPM should use platform-provided timer (ACPI 3.0) */
288#define ACPI_FADT_S4_RTC_VALID (1<<16) /* 16: [V4] Contents of RTC_STS valid after S4 wake (ACPI 3.0) */
289#define ACPI_FADT_REMOTE_POWER_ON (1<<17) /* 17: [V4] System is compatible with remote power on (ACPI 3.0) */
290#define ACPI_FADT_APIC_CLUSTER (1<<18) /* 18: [V4] All local APICs must use cluster model (ACPI 3.0) */
291#define ACPI_FADT_APIC_PHYSICAL (1<<19) /* 19: [V4] All local x_aPICs must use physical dest mode (ACPI 3.0) */
292
293/* Values for preferred_profile (Preferred Power Management Profiles) */
294
295enum acpi_prefered_pm_profiles {
296 PM_UNSPECIFIED = 0,
297 PM_DESKTOP = 1,
298 PM_MOBILE = 2,
299 PM_WORKSTATION = 3,
300 PM_ENTERPRISE_SERVER = 4,
301 PM_SOHO_SERVER = 5,
302 PM_APPLIANCE_PC = 6
303};
304
305/* Reset to default packing */
306
307#pragma pack()
308
309#define ACPI_FADT_OFFSET(f) (u8) ACPI_OFFSET (struct acpi_table_fadt, f)
310
311/*
312 * Internal table-related structures
313 */
314union acpi_name_union {
315 u32 integer;
316 char ascii[4];
317};
318
319/* Internal ACPI Table Descriptor. One per ACPI table. */
320
321struct acpi_table_desc {
322 acpi_physical_address address;
323 struct acpi_table_header *pointer;
324 u32 length; /* Length fixed at 32 bits */
325 union acpi_name_union signature;
326 acpi_owner_id owner_id;
327 u8 flags;
328};
329
330/* Masks for Flags field above */
331
332#define ACPI_TABLE_ORIGIN_UNKNOWN (0)
333#define ACPI_TABLE_ORIGIN_MAPPED (1)
334#define ACPI_TABLE_ORIGIN_ALLOCATED (2)
335#define ACPI_TABLE_ORIGIN_OVERRIDE (4)
336#define ACPI_TABLE_ORIGIN_MASK (7)
337#define ACPI_TABLE_IS_LOADED (8)
338
339/*
340 * Get the remaining ACPI tables
341 */
342
343#include <acpi/actbl1.h>
344#include <acpi/actbl2.h>
345
346/*
347 * Sizes of the various flavors of FADT. We need to look closely
348 * at the FADT length because the version number essentially tells
349 * us nothing because of many BIOS bugs where the version does not
350 * match the expected length. In other words, the length of the
351 * FADT is the bottom line as to what the version really is.
352 *
353 * For reference, the values below are as follows:
354 * FADT V1 size: 0x74
355 * FADT V2 size: 0x84
356 * FADT V3+ size: 0xF4
357 */
358#define ACPI_FADT_V1_SIZE (u32) (ACPI_FADT_OFFSET (flags) + 4)
359#define ACPI_FADT_V2_SIZE (u32) (ACPI_FADT_OFFSET (reserved4[0]) + 3)
360#define ACPI_FADT_V3_SIZE (u32) (sizeof (struct acpi_table_fadt))
361
362#endif /* __ACTBL_H__ */
1/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
2/******************************************************************************
3 *
4 * Name: actbl.h - Basic ACPI Table Definitions
5 *
6 * Copyright (C) 2000 - 2018, Intel Corp.
7 *
8 *****************************************************************************/
9
10#ifndef __ACTBL_H__
11#define __ACTBL_H__
12
13/*******************************************************************************
14 *
15 * Fundamental ACPI tables
16 *
17 * This file contains definitions for the ACPI tables that are directly consumed
18 * by ACPICA. All other tables are consumed by the OS-dependent ACPI-related
19 * device drivers and other OS support code.
20 *
21 * The RSDP and FACS do not use the common ACPI table header. All other ACPI
22 * tables use the header.
23 *
24 ******************************************************************************/
25
26/*
27 * Values for description table header signatures for tables defined in this
28 * file. Useful because they make it more difficult to inadvertently type in
29 * the wrong signature.
30 */
31#define ACPI_SIG_DSDT "DSDT" /* Differentiated System Description Table */
32#define ACPI_SIG_FADT "FACP" /* Fixed ACPI Description Table */
33#define ACPI_SIG_FACS "FACS" /* Firmware ACPI Control Structure */
34#define ACPI_SIG_OSDT "OSDT" /* Override System Description Table */
35#define ACPI_SIG_PSDT "PSDT" /* Persistent System Description Table */
36#define ACPI_SIG_RSDP "RSD PTR " /* Root System Description Pointer */
37#define ACPI_SIG_RSDT "RSDT" /* Root System Description Table */
38#define ACPI_SIG_XSDT "XSDT" /* Extended System Description Table */
39#define ACPI_SIG_SSDT "SSDT" /* Secondary System Description Table */
40#define ACPI_RSDP_NAME "RSDP" /* Short name for RSDP, not signature */
41
42/*
43 * All tables and structures must be byte-packed to match the ACPI
44 * specification, since the tables are provided by the system BIOS
45 */
46#pragma pack(1)
47
48/*
49 * Note: C bitfields are not used for this reason:
50 *
51 * "Bitfields are great and easy to read, but unfortunately the C language
52 * does not specify the layout of bitfields in memory, which means they are
53 * essentially useless for dealing with packed data in on-disk formats or
54 * binary wire protocols." (Or ACPI tables and buffers.) "If you ask me,
55 * this decision was a design error in C. Ritchie could have picked an order
56 * and stuck with it." Norman Ramsey.
57 * See http://stackoverflow.com/a/1053662/41661
58 */
59
60/*******************************************************************************
61 *
62 * Master ACPI Table Header. This common header is used by all ACPI tables
63 * except the RSDP and FACS.
64 *
65 ******************************************************************************/
66
67struct acpi_table_header {
68 char signature[ACPI_NAME_SIZE]; /* ASCII table signature */
69 u32 length; /* Length of table in bytes, including this header */
70 u8 revision; /* ACPI Specification minor version number */
71 u8 checksum; /* To make sum of entire table == 0 */
72 char oem_id[ACPI_OEM_ID_SIZE]; /* ASCII OEM identification */
73 char oem_table_id[ACPI_OEM_TABLE_ID_SIZE]; /* ASCII OEM table identification */
74 u32 oem_revision; /* OEM revision number */
75 char asl_compiler_id[ACPI_NAME_SIZE]; /* ASCII ASL compiler vendor ID */
76 u32 asl_compiler_revision; /* ASL compiler version */
77};
78
79/*******************************************************************************
80 *
81 * GAS - Generic Address Structure (ACPI 2.0+)
82 *
83 * Note: Since this structure is used in the ACPI tables, it is byte aligned.
84 * If misaligned access is not supported by the hardware, accesses to the
85 * 64-bit Address field must be performed with care.
86 *
87 ******************************************************************************/
88
89struct acpi_generic_address {
90 u8 space_id; /* Address space where struct or register exists */
91 u8 bit_width; /* Size in bits of given register */
92 u8 bit_offset; /* Bit offset within the register */
93 u8 access_width; /* Minimum Access size (ACPI 3.0) */
94 u64 address; /* 64-bit address of struct or register */
95};
96
97/*******************************************************************************
98 *
99 * RSDP - Root System Description Pointer (Signature is "RSD PTR ")
100 * Version 2
101 *
102 ******************************************************************************/
103
104struct acpi_table_rsdp {
105 char signature[8]; /* ACPI signature, contains "RSD PTR " */
106 u8 checksum; /* ACPI 1.0 checksum */
107 char oem_id[ACPI_OEM_ID_SIZE]; /* OEM identification */
108 u8 revision; /* Must be (0) for ACPI 1.0 or (2) for ACPI 2.0+ */
109 u32 rsdt_physical_address; /* 32-bit physical address of the RSDT */
110 u32 length; /* Table length in bytes, including header (ACPI 2.0+) */
111 u64 xsdt_physical_address; /* 64-bit physical address of the XSDT (ACPI 2.0+) */
112 u8 extended_checksum; /* Checksum of entire table (ACPI 2.0+) */
113 u8 reserved[3]; /* Reserved, must be zero */
114};
115
116/* Standalone struct for the ACPI 1.0 RSDP */
117
118struct acpi_rsdp_common {
119 char signature[8];
120 u8 checksum;
121 char oem_id[ACPI_OEM_ID_SIZE];
122 u8 revision;
123 u32 rsdt_physical_address;
124};
125
126/* Standalone struct for the extended part of the RSDP (ACPI 2.0+) */
127
128struct acpi_rsdp_extension {
129 u32 length;
130 u64 xsdt_physical_address;
131 u8 extended_checksum;
132 u8 reserved[3];
133};
134
135/*******************************************************************************
136 *
137 * RSDT/XSDT - Root System Description Tables
138 * Version 1 (both)
139 *
140 ******************************************************************************/
141
142struct acpi_table_rsdt {
143 struct acpi_table_header header; /* Common ACPI table header */
144 u32 table_offset_entry[1]; /* Array of pointers to ACPI tables */
145};
146
147struct acpi_table_xsdt {
148 struct acpi_table_header header; /* Common ACPI table header */
149 u64 table_offset_entry[1]; /* Array of pointers to ACPI tables */
150};
151
152#define ACPI_RSDT_ENTRY_SIZE (sizeof (u32))
153#define ACPI_XSDT_ENTRY_SIZE (sizeof (u64))
154
155/*******************************************************************************
156 *
157 * FACS - Firmware ACPI Control Structure (FACS)
158 *
159 ******************************************************************************/
160
161struct acpi_table_facs {
162 char signature[4]; /* ASCII table signature */
163 u32 length; /* Length of structure, in bytes */
164 u32 hardware_signature; /* Hardware configuration signature */
165 u32 firmware_waking_vector; /* 32-bit physical address of the Firmware Waking Vector */
166 u32 global_lock; /* Global Lock for shared hardware resources */
167 u32 flags;
168 u64 xfirmware_waking_vector; /* 64-bit version of the Firmware Waking Vector (ACPI 2.0+) */
169 u8 version; /* Version of this table (ACPI 2.0+) */
170 u8 reserved[3]; /* Reserved, must be zero */
171 u32 ospm_flags; /* Flags to be set by OSPM (ACPI 4.0) */
172 u8 reserved1[24]; /* Reserved, must be zero */
173};
174
175/* Masks for global_lock flag field above */
176
177#define ACPI_GLOCK_PENDING (1) /* 00: Pending global lock ownership */
178#define ACPI_GLOCK_OWNED (1<<1) /* 01: Global lock is owned */
179
180/* Masks for Flags field above */
181
182#define ACPI_FACS_S4_BIOS_PRESENT (1) /* 00: S4BIOS support is present */
183#define ACPI_FACS_64BIT_WAKE (1<<1) /* 01: 64-bit wake vector supported (ACPI 4.0) */
184
185/* Masks for ospm_flags field above */
186
187#define ACPI_FACS_64BIT_ENVIRONMENT (1) /* 00: 64-bit wake environment is required (ACPI 4.0) */
188
189/*******************************************************************************
190 *
191 * FADT - Fixed ACPI Description Table (Signature "FACP")
192 * Version 6
193 *
194 ******************************************************************************/
195
196/* Fields common to all versions of the FADT */
197
198struct acpi_table_fadt {
199 struct acpi_table_header header; /* Common ACPI table header */
200 u32 facs; /* 32-bit physical address of FACS */
201 u32 dsdt; /* 32-bit physical address of DSDT */
202 u8 model; /* System Interrupt Model (ACPI 1.0) - not used in ACPI 2.0+ */
203 u8 preferred_profile; /* Conveys preferred power management profile to OSPM. */
204 u16 sci_interrupt; /* System vector of SCI interrupt */
205 u32 smi_command; /* 32-bit Port address of SMI command port */
206 u8 acpi_enable; /* Value to write to SMI_CMD to enable ACPI */
207 u8 acpi_disable; /* Value to write to SMI_CMD to disable ACPI */
208 u8 s4_bios_request; /* Value to write to SMI_CMD to enter S4BIOS state */
209 u8 pstate_control; /* Processor performance state control */
210 u32 pm1a_event_block; /* 32-bit port address of Power Mgt 1a Event Reg Blk */
211 u32 pm1b_event_block; /* 32-bit port address of Power Mgt 1b Event Reg Blk */
212 u32 pm1a_control_block; /* 32-bit port address of Power Mgt 1a Control Reg Blk */
213 u32 pm1b_control_block; /* 32-bit port address of Power Mgt 1b Control Reg Blk */
214 u32 pm2_control_block; /* 32-bit port address of Power Mgt 2 Control Reg Blk */
215 u32 pm_timer_block; /* 32-bit port address of Power Mgt Timer Ctrl Reg Blk */
216 u32 gpe0_block; /* 32-bit port address of General Purpose Event 0 Reg Blk */
217 u32 gpe1_block; /* 32-bit port address of General Purpose Event 1 Reg Blk */
218 u8 pm1_event_length; /* Byte Length of ports at pm1x_event_block */
219 u8 pm1_control_length; /* Byte Length of ports at pm1x_control_block */
220 u8 pm2_control_length; /* Byte Length of ports at pm2_control_block */
221 u8 pm_timer_length; /* Byte Length of ports at pm_timer_block */
222 u8 gpe0_block_length; /* Byte Length of ports at gpe0_block */
223 u8 gpe1_block_length; /* Byte Length of ports at gpe1_block */
224 u8 gpe1_base; /* Offset in GPE number space where GPE1 events start */
225 u8 cst_control; /* Support for the _CST object and C-States change notification */
226 u16 c2_latency; /* Worst case HW latency to enter/exit C2 state */
227 u16 c3_latency; /* Worst case HW latency to enter/exit C3 state */
228 u16 flush_size; /* Processor memory cache line width, in bytes */
229 u16 flush_stride; /* Number of flush strides that need to be read */
230 u8 duty_offset; /* Processor duty cycle index in processor P_CNT reg */
231 u8 duty_width; /* Processor duty cycle value bit width in P_CNT register */
232 u8 day_alarm; /* Index to day-of-month alarm in RTC CMOS RAM */
233 u8 month_alarm; /* Index to month-of-year alarm in RTC CMOS RAM */
234 u8 century; /* Index to century in RTC CMOS RAM */
235 u16 boot_flags; /* IA-PC Boot Architecture Flags (see below for individual flags) */
236 u8 reserved; /* Reserved, must be zero */
237 u32 flags; /* Miscellaneous flag bits (see below for individual flags) */
238 struct acpi_generic_address reset_register; /* 64-bit address of the Reset register */
239 u8 reset_value; /* Value to write to the reset_register port to reset the system */
240 u16 arm_boot_flags; /* ARM-Specific Boot Flags (see below for individual flags) (ACPI 5.1) */
241 u8 minor_revision; /* FADT Minor Revision (ACPI 5.1) */
242 u64 Xfacs; /* 64-bit physical address of FACS */
243 u64 Xdsdt; /* 64-bit physical address of DSDT */
244 struct acpi_generic_address xpm1a_event_block; /* 64-bit Extended Power Mgt 1a Event Reg Blk address */
245 struct acpi_generic_address xpm1b_event_block; /* 64-bit Extended Power Mgt 1b Event Reg Blk address */
246 struct acpi_generic_address xpm1a_control_block; /* 64-bit Extended Power Mgt 1a Control Reg Blk address */
247 struct acpi_generic_address xpm1b_control_block; /* 64-bit Extended Power Mgt 1b Control Reg Blk address */
248 struct acpi_generic_address xpm2_control_block; /* 64-bit Extended Power Mgt 2 Control Reg Blk address */
249 struct acpi_generic_address xpm_timer_block; /* 64-bit Extended Power Mgt Timer Ctrl Reg Blk address */
250 struct acpi_generic_address xgpe0_block; /* 64-bit Extended General Purpose Event 0 Reg Blk address */
251 struct acpi_generic_address xgpe1_block; /* 64-bit Extended General Purpose Event 1 Reg Blk address */
252 struct acpi_generic_address sleep_control; /* 64-bit Sleep Control register (ACPI 5.0) */
253 struct acpi_generic_address sleep_status; /* 64-bit Sleep Status register (ACPI 5.0) */
254 u64 hypervisor_id; /* Hypervisor Vendor ID (ACPI 6.0) */
255};
256
257/* Masks for FADT IA-PC Boot Architecture Flags (boot_flags) [Vx]=Introduced in this FADT revision */
258
259#define ACPI_FADT_LEGACY_DEVICES (1) /* 00: [V2] System has LPC or ISA bus devices */
260#define ACPI_FADT_8042 (1<<1) /* 01: [V3] System has an 8042 controller on port 60/64 */
261#define ACPI_FADT_NO_VGA (1<<2) /* 02: [V4] It is not safe to probe for VGA hardware */
262#define ACPI_FADT_NO_MSI (1<<3) /* 03: [V4] Message Signaled Interrupts (MSI) must not be enabled */
263#define ACPI_FADT_NO_ASPM (1<<4) /* 04: [V4] PCIe ASPM control must not be enabled */
264#define ACPI_FADT_NO_CMOS_RTC (1<<5) /* 05: [V5] No CMOS real-time clock present */
265
266#define FADT2_REVISION_ID 3
267
268/* Masks for FADT ARM Boot Architecture Flags (arm_boot_flags) ACPI 5.1 */
269
270#define ACPI_FADT_PSCI_COMPLIANT (1) /* 00: [V5+] PSCI 0.2+ is implemented */
271#define ACPI_FADT_PSCI_USE_HVC (1<<1) /* 01: [V5+] HVC must be used instead of SMC as the PSCI conduit */
272
273/* Masks for FADT flags */
274
275#define ACPI_FADT_WBINVD (1) /* 00: [V1] The WBINVD instruction works properly */
276#define ACPI_FADT_WBINVD_FLUSH (1<<1) /* 01: [V1] WBINVD flushes but does not invalidate caches */
277#define ACPI_FADT_C1_SUPPORTED (1<<2) /* 02: [V1] All processors support C1 state */
278#define ACPI_FADT_C2_MP_SUPPORTED (1<<3) /* 03: [V1] C2 state works on MP system */
279#define ACPI_FADT_POWER_BUTTON (1<<4) /* 04: [V1] Power button is handled as a control method device */
280#define ACPI_FADT_SLEEP_BUTTON (1<<5) /* 05: [V1] Sleep button is handled as a control method device */
281#define ACPI_FADT_FIXED_RTC (1<<6) /* 06: [V1] RTC wakeup status is not in fixed register space */
282#define ACPI_FADT_S4_RTC_WAKE (1<<7) /* 07: [V1] RTC alarm can wake system from S4 */
283#define ACPI_FADT_32BIT_TIMER (1<<8) /* 08: [V1] ACPI timer width is 32-bit (0=24-bit) */
284#define ACPI_FADT_DOCKING_SUPPORTED (1<<9) /* 09: [V1] Docking supported */
285#define ACPI_FADT_RESET_REGISTER (1<<10) /* 10: [V2] System reset via the FADT RESET_REG supported */
286#define ACPI_FADT_SEALED_CASE (1<<11) /* 11: [V3] No internal expansion capabilities and case is sealed */
287#define ACPI_FADT_HEADLESS (1<<12) /* 12: [V3] No local video capabilities or local input devices */
288#define ACPI_FADT_SLEEP_TYPE (1<<13) /* 13: [V3] Must execute native instruction after writing SLP_TYPx register */
289#define ACPI_FADT_PCI_EXPRESS_WAKE (1<<14) /* 14: [V4] System supports PCIEXP_WAKE (STS/EN) bits (ACPI 3.0) */
290#define ACPI_FADT_PLATFORM_CLOCK (1<<15) /* 15: [V4] OSPM should use platform-provided timer (ACPI 3.0) */
291#define ACPI_FADT_S4_RTC_VALID (1<<16) /* 16: [V4] Contents of RTC_STS valid after S4 wake (ACPI 3.0) */
292#define ACPI_FADT_REMOTE_POWER_ON (1<<17) /* 17: [V4] System is compatible with remote power on (ACPI 3.0) */
293#define ACPI_FADT_APIC_CLUSTER (1<<18) /* 18: [V4] All local APICs must use cluster model (ACPI 3.0) */
294#define ACPI_FADT_APIC_PHYSICAL (1<<19) /* 19: [V4] All local xAPICs must use physical dest mode (ACPI 3.0) */
295#define ACPI_FADT_HW_REDUCED (1<<20) /* 20: [V5] ACPI hardware is not implemented (ACPI 5.0) */
296#define ACPI_FADT_LOW_POWER_S0 (1<<21) /* 21: [V5] S0 power savings are equal or better than S3 (ACPI 5.0) */
297
298/* Values for preferred_profile (Preferred Power Management Profiles) */
299
300enum acpi_preferred_pm_profiles {
301 PM_UNSPECIFIED = 0,
302 PM_DESKTOP = 1,
303 PM_MOBILE = 2,
304 PM_WORKSTATION = 3,
305 PM_ENTERPRISE_SERVER = 4,
306 PM_SOHO_SERVER = 5,
307 PM_APPLIANCE_PC = 6,
308 PM_PERFORMANCE_SERVER = 7,
309 PM_TABLET = 8
310};
311
312/* Values for sleep_status and sleep_control registers (V5+ FADT) */
313
314#define ACPI_X_WAKE_STATUS 0x80
315#define ACPI_X_SLEEP_TYPE_MASK 0x1C
316#define ACPI_X_SLEEP_TYPE_POSITION 0x02
317#define ACPI_X_SLEEP_ENABLE 0x20
318
319/* Reset to default packing */
320
321#pragma pack()
322
323/*
324 * Internal table-related structures
325 */
326union acpi_name_union {
327 u32 integer;
328 char ascii[4];
329};
330
331/* Internal ACPI Table Descriptor. One per ACPI table. */
332
333struct acpi_table_desc {
334 acpi_physical_address address;
335 struct acpi_table_header *pointer;
336 u32 length; /* Length fixed at 32 bits (fixed in table header) */
337 union acpi_name_union signature;
338 acpi_owner_id owner_id;
339 u8 flags;
340 u16 validation_count;
341};
342
343/*
344 * Maximum value of the validation_count field in struct acpi_table_desc.
345 * When reached, validation_count cannot be changed any more and the table will
346 * be permanently regarded as validated.
347 *
348 * This is to prevent situations in which unbalanced table get/put operations
349 * may cause premature table unmapping in the OS to happen.
350 *
351 * The maximum validation count can be defined to any value, but should be
352 * greater than the maximum number of OS early stage mapping slots to avoid
353 * leaking early stage table mappings to the late stage.
354 */
355#define ACPI_MAX_TABLE_VALIDATIONS ACPI_UINT16_MAX
356
357/* Masks for Flags field above */
358
359#define ACPI_TABLE_ORIGIN_EXTERNAL_VIRTUAL (0) /* Virtual address, external maintained */
360#define ACPI_TABLE_ORIGIN_INTERNAL_PHYSICAL (1) /* Physical address, internally mapped */
361#define ACPI_TABLE_ORIGIN_INTERNAL_VIRTUAL (2) /* Virtual address, internallly allocated */
362#define ACPI_TABLE_ORIGIN_MASK (3)
363#define ACPI_TABLE_IS_VERIFIED (4)
364#define ACPI_TABLE_IS_LOADED (8)
365
366/*
367 * Get the remaining ACPI tables
368 */
369#include <acpi/actbl1.h>
370#include <acpi/actbl2.h>
371#include <acpi/actbl3.h>
372
373/* Macros used to generate offsets to specific table fields */
374
375#define ACPI_FADT_OFFSET(f) (u16) ACPI_OFFSET (struct acpi_table_fadt, f)
376
377/*
378 * Sizes of the various flavors of FADT. We need to look closely
379 * at the FADT length because the version number essentially tells
380 * us nothing because of many BIOS bugs where the version does not
381 * match the expected length. In other words, the length of the
382 * FADT is the bottom line as to what the version really is.
383 *
384 * For reference, the values below are as follows:
385 * FADT V1 size: 0x074
386 * FADT V2 size: 0x084
387 * FADT V3 size: 0x0F4
388 * FADT V4 size: 0x0F4
389 * FADT V5 size: 0x10C
390 * FADT V6 size: 0x114
391 */
392#define ACPI_FADT_V1_SIZE (u32) (ACPI_FADT_OFFSET (flags) + 4)
393#define ACPI_FADT_V2_SIZE (u32) (ACPI_FADT_OFFSET (minor_revision) + 1)
394#define ACPI_FADT_V3_SIZE (u32) (ACPI_FADT_OFFSET (sleep_control))
395#define ACPI_FADT_V5_SIZE (u32) (ACPI_FADT_OFFSET (hypervisor_id))
396#define ACPI_FADT_V6_SIZE (u32) (sizeof (struct acpi_table_fadt))
397
398#define ACPI_FADT_CONFORMANCE "ACPI 6.1 (FADT version 6)"
399
400#endif /* __ACTBL_H__ */