ACPI / tables: Fix DSDT override mechanism
[linux-2.6-block.git] / include / acpi / actbl2.h
CommitLineData
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1/******************************************************************************
2 *
5cf4d733 3 * Name: actbl2.h - ACPI Table Definitions (tables not in ACPI spec)
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4 *
5 *****************************************************************************/
6
7/*
c8100dc4 8 * Copyright (C) 2000 - 2016, 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
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44#ifndef __ACTBL2_H__
45#define __ACTBL2_H__
46
47/*******************************************************************************
48 *
49 * Additional ACPI Tables (2)
50 *
51 * These tables are not consumed directly by the ACPICA subsystem, but are
52 * included here to support device drivers and the AML disassembler.
53 *
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54 * Generally, the tables in this file are defined by third-party specifications,
55 * and are not defined directly by the ACPI specification itself.
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56 *
57 ******************************************************************************/
58
59/*
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60 * Values for description table header signatures for tables defined in this
61 * file. Useful because they make it more difficult to inadvertently type in
62 * the wrong signature.
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63 */
64#define ACPI_SIG_ASF "ASF!" /* Alert Standard Format table */
65#define ACPI_SIG_BOOT "BOOT" /* Simple Boot Flag Table */
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66#define ACPI_SIG_CSRT "CSRT" /* Core System Resource Table */
67#define ACPI_SIG_DBG2 "DBG2" /* Debug Port table type 2 */
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68#define ACPI_SIG_DBGP "DBGP" /* Debug Port table */
69#define ACPI_SIG_DMAR "DMAR" /* DMA Remapping table */
70#define ACPI_SIG_HPET "HPET" /* High Precision Event Timer table */
ba494bee 71#define ACPI_SIG_IBFT "IBFT" /* iSCSI Boot Firmware Table */
874f6a72 72#define ACPI_SIG_IORT "IORT" /* IO Remapping Table */
6e2d5ebd 73#define ACPI_SIG_IVRS "IVRS" /* I/O Virtualization Reporting Structure */
d36d4e30 74#define ACPI_SIG_LPIT "LPIT" /* Low Power Idle Table */
b24aad44 75#define ACPI_SIG_MCFG "MCFG" /* PCI Memory Mapped Configuration table */
0e264f0b 76#define ACPI_SIG_MCHI "MCHI" /* Management Controller Host Interface table */
5132f2fa 77#define ACPI_SIG_MSDM "MSDM" /* Microsoft Data Management Table */
98b5c993 78#define ACPI_SIG_MTMR "MTMR" /* MID Timer table */
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79#define ACPI_SIG_SLIC "SLIC" /* Software Licensing Description Table */
80#define ACPI_SIG_SPCR "SPCR" /* Serial Port Console Redirection table */
81#define ACPI_SIG_SPMI "SPMI" /* Server Platform Management Interface table */
82#define ACPI_SIG_TCPA "TCPA" /* Trusted Computing Platform Alliance table */
9005694e 83#define ACPI_SIG_TPM2 "TPM2" /* Trusted Platform Module 2.0 H/W interface table */
b24aad44 84#define ACPI_SIG_UEFI "UEFI" /* Uefi Boot Optimization Table */
25c0330a 85#define ACPI_SIG_VRTC "VRTC" /* Virtual Real Time Clock Table */
6e2d5ebd 86#define ACPI_SIG_WAET "WAET" /* Windows ACPI Emulated devices Table */
b24aad44 87#define ACPI_SIG_WDAT "WDAT" /* Watchdog Action Table */
9d8b5e7b 88#define ACPI_SIG_WDDT "WDDT" /* Watchdog Timer Description Table */
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89#define ACPI_SIG_WDRT "WDRT" /* Watchdog Resource Table */
90
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91#ifdef ACPI_UNDEFINED_TABLES
92/*
93 * These tables have been seen in the field, but no definition has been found
94 */
95#define ACPI_SIG_ATKG "ATKG"
96#define ACPI_SIG_GSCI "GSCI" /* GMCH SCI table */
97#define ACPI_SIG_IEIT "IEIT"
98#endif
99
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100/*
101 * All tables must be byte-packed to match the ACPI specification, since
102 * the tables are provided by the system BIOS.
103 */
104#pragma pack(1)
105
106/*
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107 * Note: C bitfields are not used for this reason:
108 *
109 * "Bitfields are great and easy to read, but unfortunately the C language
110 * does not specify the layout of bitfields in memory, which means they are
111 * essentially useless for dealing with packed data in on-disk formats or
112 * binary wire protocols." (Or ACPI tables and buffers.) "If you ask me,
113 * this decision was a design error in C. Ritchie could have picked an order
114 * and stuck with it." Norman Ramsey.
115 * See http://stackoverflow.com/a/1053662/41661
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116 */
117
118/*******************************************************************************
119 *
120 * ASF - Alert Standard Format table (Signature "ASF!")
6e2d5ebd 121 * Revision 0x10
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122 *
123 * Conforms to the Alert Standard Format Specification V2.0, 23 April 2003
124 *
125 ******************************************************************************/
126
127struct acpi_table_asf {
128 struct acpi_table_header header; /* Common ACPI table header */
129};
130
131/* ASF subtable header */
132
133struct acpi_asf_header {
134 u8 type;
135 u8 reserved;
136 u16 length;
137};
138
139/* Values for Type field above */
140
141enum acpi_asf_type {
142 ACPI_ASF_TYPE_INFO = 0,
143 ACPI_ASF_TYPE_ALERT = 1,
144 ACPI_ASF_TYPE_CONTROL = 2,
145 ACPI_ASF_TYPE_BOOT = 3,
146 ACPI_ASF_TYPE_ADDRESS = 4,
147 ACPI_ASF_TYPE_RESERVED = 5
148};
149
150/*
151 * ASF subtables
152 */
153
154/* 0: ASF Information */
155
156struct acpi_asf_info {
157 struct acpi_asf_header header;
158 u8 min_reset_value;
159 u8 min_poll_interval;
160 u16 system_id;
161 u32 mfg_id;
162 u8 flags;
163 u8 reserved2[3];
164};
165
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166/* Masks for Flags field above */
167
168#define ACPI_ASF_SMBUS_PROTOCOLS (1)
169
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170/* 1: ASF Alerts */
171
172struct acpi_asf_alert {
173 struct acpi_asf_header header;
174 u8 assert_mask;
175 u8 deassert_mask;
176 u8 alerts;
177 u8 data_length;
178};
179
180struct acpi_asf_alert_data {
181 u8 address;
182 u8 command;
183 u8 mask;
184 u8 value;
185 u8 sensor_type;
186 u8 type;
187 u8 offset;
188 u8 source_type;
189 u8 severity;
190 u8 sensor_number;
191 u8 entity;
192 u8 instance;
193};
194
195/* 2: ASF Remote Control */
196
197struct acpi_asf_remote {
198 struct acpi_asf_header header;
199 u8 controls;
200 u8 data_length;
201 u16 reserved2;
202};
203
204struct acpi_asf_control_data {
205 u8 function;
206 u8 address;
207 u8 command;
208 u8 value;
209};
210
211/* 3: ASF RMCP Boot Options */
212
213struct acpi_asf_rmcp {
214 struct acpi_asf_header header;
215 u8 capabilities[7];
216 u8 completion_code;
217 u32 enterprise_id;
218 u8 command;
219 u16 parameter;
220 u16 boot_options;
221 u16 oem_parameters;
222};
223
224/* 4: ASF Address */
225
226struct acpi_asf_address {
227 struct acpi_asf_header header;
228 u8 eprom_address;
229 u8 devices;
230};
231
232/*******************************************************************************
233 *
234 * BOOT - Simple Boot Flag Table
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235 * Version 1
236 *
237 * Conforms to the "Simple Boot Flag Specification", Version 2.1
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238 *
239 ******************************************************************************/
240
241struct acpi_table_boot {
242 struct acpi_table_header header; /* Common ACPI table header */
243 u8 cmos_index; /* Index in CMOS RAM for the boot register */
244 u8 reserved[3];
245};
246
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247/*******************************************************************************
248 *
249 * CSRT - Core System Resource Table
250 * Version 0
251 *
252 * Conforms to the "Core System Resource Table (CSRT)", November 14, 2011
253 *
254 ******************************************************************************/
255
256struct acpi_table_csrt {
257 struct acpi_table_header header; /* Common ACPI table header */
258};
259
260/* Resource Group subtable */
261
262struct acpi_csrt_group {
263 u32 length;
264 u32 vendor_id;
265 u32 subvendor_id;
266 u16 device_id;
267 u16 subdevice_id;
268 u16 revision;
269 u16 reserved;
e6750be9 270 u32 shared_info_length;
4e2f9c27 271
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272 /* Shared data immediately follows (Length = shared_info_length) */
273};
274
275/* Shared Info subtable */
276
277struct acpi_csrt_shared_info {
278 u16 major_version;
279 u16 minor_version;
280 u32 mmio_base_low;
281 u32 mmio_base_high;
282 u32 gsi_interrupt;
283 u8 interrupt_polarity;
284 u8 interrupt_mode;
285 u8 num_channels;
286 u8 dma_address_width;
287 u16 base_request_line;
288 u16 num_handshake_signals;
289 u32 max_block_size;
290
291 /* Resource descriptors immediately follow (Length = Group length - shared_info_length) */
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292};
293
294/* Resource Descriptor subtable */
295
296struct acpi_csrt_descriptor {
297 u32 length;
298 u16 type;
299 u16 subtype;
300 u32 uid;
301
302 /* Resource-specific information immediately follows */
303};
304
305/* Resource Types */
306
307#define ACPI_CSRT_TYPE_INTERRUPT 0x0001
308#define ACPI_CSRT_TYPE_TIMER 0x0002
309#define ACPI_CSRT_TYPE_DMA 0x0003
310
311/* Resource Subtypes */
312
313#define ACPI_CSRT_XRUPT_LINE 0x0000
314#define ACPI_CSRT_XRUPT_CONTROLLER 0x0001
315#define ACPI_CSRT_TIMER 0x0000
316#define ACPI_CSRT_DMA_CHANNEL 0x0000
317#define ACPI_CSRT_DMA_CONTROLLER 0x0001
318
319/*******************************************************************************
320 *
321 * DBG2 - Debug Port Table 2
322 * Version 0 (Both main table and subtables)
323 *
324 * Conforms to "Microsoft Debug Port Table 2 (DBG2)", May 22 2012.
325 *
326 ******************************************************************************/
327
328struct acpi_table_dbg2 {
329 struct acpi_table_header header; /* Common ACPI table header */
330 u32 info_offset;
331 u32 info_count;
332};
333
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334struct acpi_dbg2_header {
335 u32 info_offset;
336 u32 info_count;
337};
338
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339/* Debug Device Information Subtable */
340
341struct acpi_dbg2_device {
342 u8 revision;
343 u16 length;
344 u8 register_count; /* Number of base_address registers */
345 u16 namepath_length;
346 u16 namepath_offset;
347 u16 oem_data_length;
348 u16 oem_data_offset;
349 u16 port_type;
350 u16 port_subtype;
351 u16 reserved;
352 u16 base_address_offset;
353 u16 address_size_offset;
354 /*
355 * Data that follows:
356 * base_address (required) - Each in 12-byte Generic Address Structure format.
357 * address_size (required) - Array of u32 sizes corresponding to each base_address register.
358 * Namepath (required) - Null terminated string. Single dot if not supported.
359 * oem_data (optional) - Length is oem_data_length.
360 */
361};
362
363/* Types for port_type field above */
364
365#define ACPI_DBG2_SERIAL_PORT 0x8000
366#define ACPI_DBG2_1394_PORT 0x8001
367#define ACPI_DBG2_USB_PORT 0x8002
368#define ACPI_DBG2_NET_PORT 0x8003
369
370/* Subtypes for port_subtype field above */
371
372#define ACPI_DBG2_16550_COMPATIBLE 0x0000
373#define ACPI_DBG2_16550_SUBSET 0x0001
374
375#define ACPI_DBG2_1394_STANDARD 0x0000
376
377#define ACPI_DBG2_USB_XHCI 0x0000
378#define ACPI_DBG2_USB_EHCI 0x0001
379
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380/*******************************************************************************
381 *
382 * DBGP - Debug Port table
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383 * Version 1
384 *
385 * Conforms to the "Debug Port Specification", Version 1.00, 2/9/2000
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386 *
387 ******************************************************************************/
388
389struct acpi_table_dbgp {
390 struct acpi_table_header header; /* Common ACPI table header */
391 u8 type; /* 0=full 16550, 1=subset of 16550 */
392 u8 reserved[3];
393 struct acpi_generic_address debug_port;
394};
395
396/*******************************************************************************
397 *
398 * DMAR - DMA Remapping table
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399 * Version 1
400 *
401 * Conforms to "Intel Virtualization Technology for Directed I/O",
83118b0d 402 * Version 2.2, Sept. 2013
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403 *
404 ******************************************************************************/
405
406struct acpi_table_dmar {
407 struct acpi_table_header header; /* Common ACPI table header */
408 u8 width; /* Host Address Width */
409 u8 flags;
410 u8 reserved[10];
411};
412
6e2d5ebd 413/* Masks for Flags field above */
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414
415#define ACPI_DMAR_INTR_REMAP (1)
416
417/* DMAR subtable header */
418
419struct acpi_dmar_header {
420 u16 type;
421 u16 length;
422};
423
424/* Values for subtable type in struct acpi_dmar_header */
425
426enum acpi_dmar_type {
427 ACPI_DMAR_TYPE_HARDWARE_UNIT = 0,
428 ACPI_DMAR_TYPE_RESERVED_MEMORY = 1,
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429 ACPI_DMAR_TYPE_ROOT_ATS = 2,
430 ACPI_DMAR_TYPE_HARDWARE_AFFINITY = 3,
431 ACPI_DMAR_TYPE_NAMESPACE = 4,
86a54dcc 432 ACPI_DMAR_TYPE_RESERVED = 5 /* 5 and greater are reserved */
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433};
434
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435/* DMAR Device Scope structure */
436
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437struct acpi_dmar_device_scope {
438 u8 entry_type;
439 u8 length;
440 u16 reserved;
441 u8 enumeration_id;
442 u8 bus;
443};
444
83118b0d 445/* Values for entry_type in struct acpi_dmar_device_scope - device types */
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446
447enum acpi_dmar_scope_type {
448 ACPI_DMAR_SCOPE_TYPE_NOT_USED = 0,
449 ACPI_DMAR_SCOPE_TYPE_ENDPOINT = 1,
450 ACPI_DMAR_SCOPE_TYPE_BRIDGE = 2,
451 ACPI_DMAR_SCOPE_TYPE_IOAPIC = 3,
452 ACPI_DMAR_SCOPE_TYPE_HPET = 4,
83118b0d 453 ACPI_DMAR_SCOPE_TYPE_NAMESPACE = 5,
86a54dcc 454 ACPI_DMAR_SCOPE_TYPE_RESERVED = 6 /* 6 and greater are reserved */
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455};
456
457struct acpi_dmar_pci_path {
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458 u8 device;
459 u8 function;
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460};
461
462/*
1a49b72c 463 * DMAR Subtables, correspond to Type in struct acpi_dmar_header
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464 */
465
466/* 0: Hardware Unit Definition */
467
468struct acpi_dmar_hardware_unit {
469 struct acpi_dmar_header header;
470 u8 flags;
471 u8 reserved;
472 u16 segment;
473 u64 address; /* Register Base Address */
474};
475
6e2d5ebd 476/* Masks for Flags field above */
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477
478#define ACPI_DMAR_INCLUDE_ALL (1)
479
480/* 1: Reserved Memory Defininition */
481
482struct acpi_dmar_reserved_memory {
483 struct acpi_dmar_header header;
484 u16 reserved;
485 u16 segment;
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486 u64 base_address; /* 4K aligned base address */
487 u64 end_address; /* 4K aligned limit address */
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488};
489
6e2d5ebd 490/* Masks for Flags field above */
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491
492#define ACPI_DMAR_ALLOW_ALL (1)
493
494/* 2: Root Port ATS Capability Reporting Structure */
495
496struct acpi_dmar_atsr {
497 struct acpi_dmar_header header;
498 u8 flags;
499 u8 reserved;
500 u16 segment;
501};
502
6e2d5ebd 503/* Masks for Flags field above */
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504
505#define ACPI_DMAR_ALL_PORTS (1)
506
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507/* 3: Remapping Hardware Static Affinity Structure */
508
509struct acpi_dmar_rhsa {
510 struct acpi_dmar_header header;
511 u32 reserved;
512 u64 base_address;
513 u32 proximity_domain;
514};
515
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516/* 4: ACPI Namespace Device Declaration Structure */
517
518struct acpi_dmar_andd {
519 struct acpi_dmar_header header;
520 u8 reserved[3];
521 u8 device_number;
83118b0d 522 char device_name[1];
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523};
524
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525/*******************************************************************************
526 *
527 * HPET - High Precision Event Timer table
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528 * Version 1
529 *
530 * Conforms to "IA-PC HPET (High Precision Event Timers) Specification",
531 * Version 1.0a, October 2004
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532 *
533 ******************************************************************************/
534
535struct acpi_table_hpet {
536 struct acpi_table_header header; /* Common ACPI table header */
537 u32 id; /* Hardware ID of event timer block */
538 struct acpi_generic_address address; /* Address of event timer block */
539 u8 sequence; /* HPET sequence number */
540 u16 minimum_tick; /* Main counter min tick, periodic mode */
541 u8 flags;
542};
543
6e2d5ebd 544/* Masks for Flags field above */
b24aad44 545
6e2d5ebd 546#define ACPI_HPET_PAGE_PROTECT_MASK (3)
b24aad44 547
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548/* Values for Page Protect flags */
549
550enum acpi_hpet_page_protect {
551 ACPI_HPET_NO_PAGE_PROTECT = 0,
552 ACPI_HPET_PAGE_PROTECT4 = 1,
553 ACPI_HPET_PAGE_PROTECT64 = 2
554};
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555
556/*******************************************************************************
557 *
558 * IBFT - Boot Firmware Table
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559 * Version 1
560 *
561 * Conforms to "iSCSI Boot Firmware Table (iBFT) as Defined in ACPI 3.0b
562 * Specification", Version 1.01, March 1, 2007
563 *
564 * Note: It appears that this table is not intended to appear in the RSDT/XSDT.
565 * Therefore, it is not currently supported by the disassembler.
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566 *
567 ******************************************************************************/
568
569struct acpi_table_ibft {
570 struct acpi_table_header header; /* Common ACPI table header */
571 u8 reserved[12];
572};
573
574/* IBFT common subtable header */
575
576struct acpi_ibft_header {
577 u8 type;
578 u8 version;
579 u16 length;
580 u8 index;
581 u8 flags;
582};
583
584/* Values for Type field above */
585
586enum acpi_ibft_type {
587 ACPI_IBFT_TYPE_NOT_USED = 0,
588 ACPI_IBFT_TYPE_CONTROL = 1,
589 ACPI_IBFT_TYPE_INITIATOR = 2,
590 ACPI_IBFT_TYPE_NIC = 3,
591 ACPI_IBFT_TYPE_TARGET = 4,
592 ACPI_IBFT_TYPE_EXTENSIONS = 5,
593 ACPI_IBFT_TYPE_RESERVED = 6 /* 6 and greater are reserved */
594};
595
596/* IBFT subtables */
597
598struct acpi_ibft_control {
599 struct acpi_ibft_header header;
600 u16 extensions;
601 u16 initiator_offset;
602 u16 nic0_offset;
603 u16 target0_offset;
604 u16 nic1_offset;
605 u16 target1_offset;
606};
607
608struct acpi_ibft_initiator {
609 struct acpi_ibft_header header;
610 u8 sns_server[16];
611 u8 slp_server[16];
612 u8 primary_server[16];
613 u8 secondary_server[16];
614 u16 name_length;
615 u16 name_offset;
616};
617
618struct acpi_ibft_nic {
619 struct acpi_ibft_header header;
620 u8 ip_address[16];
621 u8 subnet_mask_prefix;
622 u8 origin;
623 u8 gateway[16];
624 u8 primary_dns[16];
625 u8 secondary_dns[16];
626 u8 dhcp[16];
627 u16 vlan;
628 u8 mac_address[6];
629 u16 pci_address;
630 u16 name_length;
631 u16 name_offset;
632};
633
634struct acpi_ibft_target {
635 struct acpi_ibft_header header;
636 u8 target_ip_address[16];
637 u16 target_ip_socket;
638 u8 target_boot_lun[8];
639 u8 chap_type;
640 u8 nic_association;
641 u16 target_name_length;
642 u16 target_name_offset;
643 u16 chap_name_length;
644 u16 chap_name_offset;
645 u16 chap_secret_length;
646 u16 chap_secret_offset;
647 u16 reverse_chap_name_length;
648 u16 reverse_chap_name_offset;
649 u16 reverse_chap_secret_length;
650 u16 reverse_chap_secret_offset;
651};
652
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653/*******************************************************************************
654 *
655 * IORT - IO Remapping Table
656 *
657 * Conforms to "IO Remapping Table System Software on ARM Platforms",
658 * Document number: ARM DEN 0049A, 2015
659 *
660 ******************************************************************************/
661
662struct acpi_table_iort {
663 struct acpi_table_header header;
664 u32 node_count;
665 u32 node_offset;
666 u32 reserved;
667};
668
669/*
670 * IORT subtables
671 */
672struct acpi_iort_node {
673 u8 type;
674 u16 length;
675 u8 revision;
676 u32 reserved;
677 u32 mapping_count;
678 u32 mapping_offset;
679 char node_data[1];
680};
681
682/* Values for subtable Type above */
683
684enum acpi_iort_node_type {
685 ACPI_IORT_NODE_ITS_GROUP = 0x00,
686 ACPI_IORT_NODE_NAMED_COMPONENT = 0x01,
687 ACPI_IORT_NODE_PCI_ROOT_COMPLEX = 0x02,
688 ACPI_IORT_NODE_SMMU = 0x03
689};
690
691struct acpi_iort_id_mapping {
692 u32 input_base; /* Lowest value in input range */
693 u32 id_count; /* Number of IDs */
694 u32 output_base; /* Lowest value in output range */
695 u32 output_reference; /* A reference to the output node */
696 u32 flags;
697};
698
699/* Masks for Flags field above for IORT subtable */
700
701#define ACPI_IORT_ID_SINGLE_MAPPING (1)
702
703struct acpi_iort_memory_access {
704 u32 cache_coherency;
705 u8 hints;
706 u16 reserved;
707 u8 memory_flags;
708};
709
710/* Values for cache_coherency field above */
711
712#define ACPI_IORT_NODE_COHERENT 0x00000001 /* The device node is fully coherent */
713#define ACPI_IORT_NODE_NOT_COHERENT 0x00000000 /* The device node is not coherent */
714
715/* Masks for Hints field above */
716
717#define ACPI_IORT_HT_TRANSIENT (1)
718#define ACPI_IORT_HT_WRITE (1<<1)
719#define ACPI_IORT_HT_READ (1<<2)
720#define ACPI_IORT_HT_OVERRIDE (1<<3)
721
722/* Masks for memory_flags field above */
723
724#define ACPI_IORT_MF_COHERENCY (1)
725#define ACPI_IORT_MF_ATTRIBUTES (1<<1)
726
727/*
728 * IORT node specific subtables
729 */
730struct acpi_iort_its_group {
731 u32 its_count;
732 u32 identifiers[1]; /* GIC ITS identifier arrary */
733};
734
735struct acpi_iort_named_component {
736 u32 node_flags;
737 u64 memory_properties; /* Memory access properties */
738 u8 memory_address_limit; /* Memory address size limit */
739 char device_name[1]; /* Path of namespace object */
740};
741
742struct acpi_iort_root_complex {
743 u64 memory_properties; /* Memory access properties */
744 u32 ats_attribute;
745 u32 pci_segment_number;
746};
747
748/* Values for ats_attribute field above */
749
750#define ACPI_IORT_ATS_SUPPORTED 0x00000001 /* The root complex supports ATS */
751#define ACPI_IORT_ATS_UNSUPPORTED 0x00000000 /* The root complex doesn't support ATS */
752
753struct acpi_iort_smmu {
754 u64 base_address; /* SMMU base address */
755 u64 span; /* Length of memory range */
756 u32 model;
757 u32 flags;
758 u32 global_interrupt_offset;
759 u32 context_interrupt_count;
760 u32 context_interrupt_offset;
761 u32 pmu_interrupt_count;
762 u32 pmu_interrupt_offset;
763 u64 interrupts[1]; /* Interrupt array */
764};
765
766/* Values for Model field above */
767
768#define ACPI_IORT_SMMU_V1 0x00000000 /* Generic SMMUv1 */
769#define ACPI_IORT_SMMU_V2 0x00000001 /* Generic SMMUv2 */
770#define ACPI_IORT_SMMU_CORELINK_MMU400 0x00000002 /* ARM Corelink MMU-400 */
771#define ACPI_IORT_SMMU_CORELINK_MMU500 0x00000003 /* ARM Corelink MMU-500 */
772
773/* Masks for Flags field above */
774
775#define ACPI_IORT_SMMU_DVM_SUPPORTED (1)
776#define ACPI_IORT_SMMU_COHERENT_WALK (1<<1)
777
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778/*******************************************************************************
779 *
780 * IVRS - I/O Virtualization Reporting Structure
781 * Version 1
782 *
783 * Conforms to "AMD I/O Virtualization Technology (IOMMU) Specification",
784 * Revision 1.26, February 2009.
785 *
786 ******************************************************************************/
787
788struct acpi_table_ivrs {
789 struct acpi_table_header header; /* Common ACPI table header */
790 u32 info; /* Common virtualization info */
791 u64 reserved;
792};
793
794/* Values for Info field above */
795
796#define ACPI_IVRS_PHYSICAL_SIZE 0x00007F00 /* 7 bits, physical address size */
797#define ACPI_IVRS_VIRTUAL_SIZE 0x003F8000 /* 7 bits, virtual address size */
798#define ACPI_IVRS_ATS_RESERVED 0x00400000 /* ATS address translation range reserved */
799
800/* IVRS subtable header */
801
802struct acpi_ivrs_header {
803 u8 type; /* Subtable type */
804 u8 flags;
805 u16 length; /* Subtable length */
806 u16 device_id; /* ID of IOMMU */
807};
808
809/* Values for subtable Type above */
810
811enum acpi_ivrs_type {
812 ACPI_IVRS_TYPE_HARDWARE = 0x10,
813 ACPI_IVRS_TYPE_MEMORY1 = 0x20,
814 ACPI_IVRS_TYPE_MEMORY2 = 0x21,
815 ACPI_IVRS_TYPE_MEMORY3 = 0x22
816};
817
818/* Masks for Flags field above for IVHD subtable */
819
820#define ACPI_IVHD_TT_ENABLE (1)
821#define ACPI_IVHD_PASS_PW (1<<1)
822#define ACPI_IVHD_RES_PASS_PW (1<<2)
823#define ACPI_IVHD_ISOC (1<<3)
824#define ACPI_IVHD_IOTLB (1<<4)
825
826/* Masks for Flags field above for IVMD subtable */
827
828#define ACPI_IVMD_UNITY (1)
829#define ACPI_IVMD_READ (1<<1)
830#define ACPI_IVMD_WRITE (1<<2)
831#define ACPI_IVMD_EXCLUSION_RANGE (1<<3)
832
833/*
834 * IVRS subtables, correspond to Type in struct acpi_ivrs_header
835 */
836
837/* 0x10: I/O Virtualization Hardware Definition Block (IVHD) */
838
839struct acpi_ivrs_hardware {
840 struct acpi_ivrs_header header;
841 u16 capability_offset; /* Offset for IOMMU control fields */
842 u64 base_address; /* IOMMU control registers */
843 u16 pci_segment_group;
844 u16 info; /* MSI number and unit ID */
845 u32 reserved;
846};
847
848/* Masks for Info field above */
849
850#define ACPI_IVHD_MSI_NUMBER_MASK 0x001F /* 5 bits, MSI message number */
ba494bee 851#define ACPI_IVHD_UNIT_ID_MASK 0x1F00 /* 5 bits, unit_ID */
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852
853/*
854 * Device Entries for IVHD subtable, appear after struct acpi_ivrs_hardware structure.
855 * Upper two bits of the Type field are the (encoded) length of the structure.
856 * Currently, only 4 and 8 byte entries are defined. 16 and 32 byte entries
857 * are reserved for future use but not defined.
858 */
859struct acpi_ivrs_de_header {
860 u8 type;
861 u16 id;
862 u8 data_setting;
863};
864
865/* Length of device entry is in the top two bits of Type field above */
866
867#define ACPI_IVHD_ENTRY_LENGTH 0xC0
868
869/* Values for device entry Type field above */
870
871enum acpi_ivrs_device_entry_type {
872 /* 4-byte device entries, all use struct acpi_ivrs_device4 */
873
874 ACPI_IVRS_TYPE_PAD4 = 0,
875 ACPI_IVRS_TYPE_ALL = 1,
876 ACPI_IVRS_TYPE_SELECT = 2,
877 ACPI_IVRS_TYPE_START = 3,
878 ACPI_IVRS_TYPE_END = 4,
879
880 /* 8-byte device entries */
881
882 ACPI_IVRS_TYPE_PAD8 = 64,
883 ACPI_IVRS_TYPE_NOT_USED = 65,
884 ACPI_IVRS_TYPE_ALIAS_SELECT = 66, /* Uses struct acpi_ivrs_device8a */
885 ACPI_IVRS_TYPE_ALIAS_START = 67, /* Uses struct acpi_ivrs_device8a */
886 ACPI_IVRS_TYPE_EXT_SELECT = 70, /* Uses struct acpi_ivrs_device8b */
887 ACPI_IVRS_TYPE_EXT_START = 71, /* Uses struct acpi_ivrs_device8b */
888 ACPI_IVRS_TYPE_SPECIAL = 72 /* Uses struct acpi_ivrs_device8c */
889};
890
891/* Values for Data field above */
892
893#define ACPI_IVHD_INIT_PASS (1)
894#define ACPI_IVHD_EINT_PASS (1<<1)
895#define ACPI_IVHD_NMI_PASS (1<<2)
896#define ACPI_IVHD_SYSTEM_MGMT (3<<4)
897#define ACPI_IVHD_LINT0_PASS (1<<6)
898#define ACPI_IVHD_LINT1_PASS (1<<7)
899
900/* Types 0-4: 4-byte device entry */
901
902struct acpi_ivrs_device4 {
903 struct acpi_ivrs_de_header header;
904};
905
906/* Types 66-67: 8-byte device entry */
907
908struct acpi_ivrs_device8a {
909 struct acpi_ivrs_de_header header;
910 u8 reserved1;
911 u16 used_id;
912 u8 reserved2;
913};
914
915/* Types 70-71: 8-byte device entry */
916
917struct acpi_ivrs_device8b {
918 struct acpi_ivrs_de_header header;
919 u32 extended_data;
920};
921
922/* Values for extended_data above */
923
924#define ACPI_IVHD_ATS_DISABLED (1<<31)
925
926/* Type 72: 8-byte device entry */
927
928struct acpi_ivrs_device8c {
929 struct acpi_ivrs_de_header header;
930 u8 handle;
931 u16 used_id;
932 u8 variety;
933};
934
935/* Values for Variety field above */
936
937#define ACPI_IVHD_IOAPIC 1
938#define ACPI_IVHD_HPET 2
939
940/* 0x20, 0x21, 0x22: I/O Virtualization Memory Definition Block (IVMD) */
941
942struct acpi_ivrs_memory {
943 struct acpi_ivrs_header header;
944 u16 aux_data;
945 u64 reserved;
946 u64 start_address;
947 u64 memory_length;
948};
949
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950/*******************************************************************************
951 *
952 * LPIT - Low Power Idle Table
953 *
9ab8cf1b 954 * Conforms to "ACPI Low Power Idle Table (LPIT)" July 2014.
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955 *
956 ******************************************************************************/
957
958struct acpi_table_lpit {
959 struct acpi_table_header header; /* Common ACPI table header */
960};
961
962/* LPIT subtable header */
963
964struct acpi_lpit_header {
965 u32 type; /* Subtable type */
966 u32 length; /* Subtable length */
967 u16 unique_id;
968 u16 reserved;
969 u32 flags;
970};
971
972/* Values for subtable Type above */
973
974enum acpi_lpit_type {
975 ACPI_LPIT_TYPE_NATIVE_CSTATE = 0x00,
9ab8cf1b 976 ACPI_LPIT_TYPE_RESERVED = 0x01 /* 1 and above are reserved */
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977};
978
979/* Masks for Flags field above */
980
981#define ACPI_LPIT_STATE_DISABLED (1)
982#define ACPI_LPIT_NO_COUNTER (1<<1)
983
984/*
985 * LPIT subtables, correspond to Type in struct acpi_lpit_header
986 */
987
988/* 0x00: Native C-state instruction based LPI structure */
989
990struct acpi_lpit_native {
991 struct acpi_lpit_header header;
992 struct acpi_generic_address entry_trigger;
993 u32 residency;
994 u32 latency;
995 struct acpi_generic_address residency_counter;
996 u64 counter_frequency;
997};
998
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999/*******************************************************************************
1000 *
1a49b72c 1001 * MCFG - PCI Memory Mapped Configuration table and subtable
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1002 * Version 1
1003 *
1004 * Conforms to "PCI Firmware Specification", Revision 3.0, June 20, 2005
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1005 *
1006 ******************************************************************************/
1007
1008struct acpi_table_mcfg {
1009 struct acpi_table_header header; /* Common ACPI table header */
1010 u8 reserved[8];
1011};
1012
1013/* Subtable */
1014
1015struct acpi_mcfg_allocation {
1016 u64 address; /* Base address, processor-relative */
1017 u16 pci_segment; /* PCI segment group number */
1018 u8 start_bus_number; /* Starting PCI Bus number */
1019 u8 end_bus_number; /* Final PCI Bus number */
1020 u32 reserved;
1021};
1022
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1023/*******************************************************************************
1024 *
1025 * MCHI - Management Controller Host Interface Table
1026 * Version 1
1027 *
1028 * Conforms to "Management Component Transport Protocol (MCTP) Host
1029 * Interface Specification", Revision 1.0.0a, October 13, 2009
1030 *
1031 ******************************************************************************/
1032
1033struct acpi_table_mchi {
1034 struct acpi_table_header header; /* Common ACPI table header */
1035 u8 interface_type;
1036 u8 protocol;
1037 u64 protocol_data;
1038 u8 interrupt_type;
1039 u8 gpe;
1040 u8 pci_device_flag;
1041 u32 global_interrupt;
1042 struct acpi_generic_address control_register;
1043 u8 pci_segment;
1044 u8 pci_bus;
1045 u8 pci_device;
1046 u8 pci_function;
1047};
1048
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1049/*******************************************************************************
1050 *
1051 * MSDM - Microsoft Data Management table
1052 *
1053 * Conforms to "Microsoft Software Licensing Tables (SLIC and MSDM)",
1054 * November 29, 2011. Copyright 2011 Microsoft
1055 *
1056 ******************************************************************************/
1057
1058/* Basic MSDM table is only the common ACPI header */
1059
1060struct acpi_table_msdm {
1061 struct acpi_table_header header; /* Common ACPI table header */
1062};
1063
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1064/*******************************************************************************
1065 *
1066 * MTMR - MID Timer Table
1067 * Version 1
1068 *
1069 * Conforms to "Simple Firmware Interface Specification",
1070 * Draft 0.8.2, Oct 19, 2010
1071 * NOTE: The ACPI MTMR is equivalent to the SFI MTMR table.
1072 *
1073 ******************************************************************************/
1074
1075struct acpi_table_mtmr {
1076 struct acpi_table_header header; /* Common ACPI table header */
1077};
1078
1079/* MTMR entry */
1080
1081struct acpi_mtmr_entry {
1082 struct acpi_generic_address physical_address;
1083 u32 frequency;
1084 u32 irq;
1085};
1086
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1087/*******************************************************************************
1088 *
1089 * SLIC - Software Licensing Description Table
5cf4d733 1090 *
64645c3f 1091 * Conforms to "Microsoft Software Licensing Tables (SLIC and MSDM)",
5132f2fa 1092 * November 29, 2011. Copyright 2011 Microsoft
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1093 *
1094 ******************************************************************************/
1095
1096/* Basic SLIC table is only the common ACPI header */
1097
1098struct acpi_table_slic {
1099 struct acpi_table_header header; /* Common ACPI table header */
1100};
1101
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1102/*******************************************************************************
1103 *
1104 * SPCR - Serial Port Console Redirection table
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1105 * Version 1
1106 *
1107 * Conforms to "Serial Port Console Redirection Table",
1108 * Version 1.00, January 11, 2002
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1109 *
1110 ******************************************************************************/
1111
1112struct acpi_table_spcr {
1113 struct acpi_table_header header; /* Common ACPI table header */
1114 u8 interface_type; /* 0=full 16550, 1=subset of 16550 */
1115 u8 reserved[3];
1116 struct acpi_generic_address serial_port;
1117 u8 interrupt_type;
1118 u8 pc_interrupt;
1119 u32 interrupt;
1120 u8 baud_rate;
1121 u8 parity;
1122 u8 stop_bits;
1123 u8 flow_control;
1124 u8 terminal_type;
1125 u8 reserved1;
1126 u16 pci_device_id;
1127 u16 pci_vendor_id;
1128 u8 pci_bus;
1129 u8 pci_device;
1130 u8 pci_function;
1131 u32 pci_flags;
1132 u8 pci_segment;
1133 u32 reserved2;
1134};
1135
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1136/* Masks for pci_flags field above */
1137
1138#define ACPI_SPCR_DO_NOT_DISABLE (1)
1139
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1140/*******************************************************************************
1141 *
1142 * SPMI - Server Platform Management Interface table
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1143 * Version 5
1144 *
1145 * Conforms to "Intelligent Platform Management Interface Specification
1146 * Second Generation v2.0", Document Revision 1.0, February 12, 2004 with
1147 * June 12, 2009 markup.
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1148 *
1149 ******************************************************************************/
1150
1151struct acpi_table_spmi {
1152 struct acpi_table_header header; /* Common ACPI table header */
b24aad44 1153 u8 interface_type;
6e2d5ebd 1154 u8 reserved; /* Must be 1 */
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1155 u16 spec_revision; /* Version of IPMI */
1156 u8 interrupt_type;
1157 u8 gpe_number; /* GPE assigned */
1158 u8 reserved1;
1159 u8 pci_device_flag;
1160 u32 interrupt;
1161 struct acpi_generic_address ipmi_register;
1162 u8 pci_segment;
1163 u8 pci_bus;
1164 u8 pci_device;
1165 u8 pci_function;
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1166 u8 reserved2;
1167};
1168
1169/* Values for interface_type above */
1170
1171enum acpi_spmi_interface_types {
1172 ACPI_SPMI_NOT_USED = 0,
1173 ACPI_SPMI_KEYBOARD = 1,
1174 ACPI_SPMI_SMI = 2,
1175 ACPI_SPMI_BLOCK_TRANSFER = 3,
1176 ACPI_SPMI_SMBUS = 4,
1177 ACPI_SPMI_RESERVED = 5 /* 5 and above are reserved */
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1178};
1179
1180/*******************************************************************************
1181 *
1182 * TCPA - Trusted Computing Platform Alliance table
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1183 * Version 2
1184 *
1185 * Conforms to "TCG ACPI Specification, Family 1.2 and 2.0",
1186 * December 19, 2014
6e2d5ebd 1187 *
9005694e 1188 * NOTE: There are two versions of the table with the same signature --
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1189 * the client version and the server version. The common platform_class
1190 * field is used to differentiate the two types of tables.
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1191 *
1192 ******************************************************************************/
1193
15a61aa1 1194struct acpi_table_tcpa_hdr {
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1195 struct acpi_table_header header; /* Common ACPI table header */
1196 u16 platform_class;
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1197};
1198
1199/*
1200 * Values for platform_class above.
1201 * This is how the client and server subtables are differentiated
1202 */
1203#define ACPI_TCPA_CLIENT_TABLE 0
1204#define ACPI_TCPA_SERVER_TABLE 1
1205
1206struct acpi_table_tcpa_client {
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1207 u32 minimum_log_length; /* Minimum length for the event log area */
1208 u64 log_address; /* Address of the event log area */
1209};
1210
1211struct acpi_table_tcpa_server {
b24aad44 1212 u16 reserved;
9005694e 1213 u64 minimum_log_length; /* Minimum length for the event log area */
b24aad44 1214 u64 log_address; /* Address of the event log area */
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1215 u16 spec_revision;
1216 u8 device_flags;
1217 u8 interrupt_flags;
1218 u8 gpe_number;
1219 u8 reserved2[3];
1220 u32 global_interrupt;
1221 struct acpi_generic_address address;
1222 u32 reserved3;
1223 struct acpi_generic_address config_address;
1224 u8 group;
1225 u8 bus; /* PCI Bus/Segment/Function numbers */
1226 u8 device;
1227 u8 function;
1228};
1229
1230/* Values for device_flags above */
1231
1232#define ACPI_TCPA_PCI_DEVICE (1)
1233#define ACPI_TCPA_BUS_PNP (1<<1)
1234#define ACPI_TCPA_ADDRESS_VALID (1<<2)
1235
1236/* Values for interrupt_flags above */
1237
1238#define ACPI_TCPA_INTERRUPT_MODE (1)
1239#define ACPI_TCPA_INTERRUPT_POLARITY (1<<1)
1240#define ACPI_TCPA_SCI_VIA_GPE (1<<2)
1241#define ACPI_TCPA_GLOBAL_INTERRUPT (1<<3)
1242
1243/*******************************************************************************
1244 *
1245 * TPM2 - Trusted Platform Module (TPM) 2.0 Hardware Interface Table
1246 * Version 4
1247 *
1248 * Conforms to "TCG ACPI Specification, Family 1.2 and 2.0",
1249 * December 19, 2014
1250 *
1251 ******************************************************************************/
1252
1253struct acpi_table_tpm2 {
1254 struct acpi_table_header header; /* Common ACPI table header */
1255 u16 platform_class;
1256 u16 reserved;
1257 u64 control_address;
1258 u32 start_method;
1259
1260 /* Platform-specific data follows */
1261};
1262
413d4a6d 1263/* Values for start_method above */
9005694e 1264
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1265#define ACPI_TPM2_NOT_ALLOWED 0
1266#define ACPI_TPM2_START_METHOD 2
1267#define ACPI_TPM2_MEMORY_MAPPED 6
1268#define ACPI_TPM2_COMMAND_BUFFER 7
1269#define ACPI_TPM2_COMMAND_BUFFER_WITH_START_METHOD 8
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1270
1271/*******************************************************************************
1272 *
1273 * UEFI - UEFI Boot optimization Table
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1274 * Version 1
1275 *
1276 * Conforms to "Unified Extensible Firmware Interface Specification",
1277 * Version 2.3, May 8, 2009
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1278 *
1279 ******************************************************************************/
1280
1281struct acpi_table_uefi {
1282 struct acpi_table_header header; /* Common ACPI table header */
1283 u8 identifier[16]; /* UUID identifier */
1284 u16 data_offset; /* Offset of remaining data in table */
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1285};
1286
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1287/*******************************************************************************
1288 *
1289 * VRTC - Virtual Real Time Clock Table
1290 * Version 1
1291 *
1292 * Conforms to "Simple Firmware Interface Specification",
1293 * Draft 0.8.2, Oct 19, 2010
1294 * NOTE: The ACPI VRTC is equivalent to The SFI MRTC table.
1295 *
1296 ******************************************************************************/
1297
1298struct acpi_table_vrtc {
1299 struct acpi_table_header header; /* Common ACPI table header */
1300};
1301
1302/* VRTC entry */
1303
1304struct acpi_vrtc_entry {
1305 struct acpi_generic_address physical_address;
1306 u32 irq;
1307};
1308
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1309/*******************************************************************************
1310 *
1311 * WAET - Windows ACPI Emulated devices Table
1312 * Version 1
1313 *
1314 * Conforms to "Windows ACPI Emulated Devices Table", version 1.0, April 6, 2009
1315 *
1316 ******************************************************************************/
1317
1318struct acpi_table_waet {
1319 struct acpi_table_header header; /* Common ACPI table header */
1320 u32 flags;
1321};
1322
1323/* Masks for Flags field above */
1324
1325#define ACPI_WAET_RTC_NO_ACK (1) /* RTC requires no int acknowledge */
1326#define ACPI_WAET_TIMER_ONE_READ (1<<1) /* PM timer requires only one read */
1327
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1328/*******************************************************************************
1329 *
1330 * WDAT - Watchdog Action Table
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1331 * Version 1
1332 *
1333 * Conforms to "Hardware Watchdog Timers Design Specification",
1334 * Copyright 2006 Microsoft Corporation.
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1335 *
1336 ******************************************************************************/
1337
1338struct acpi_table_wdat {
1339 struct acpi_table_header header; /* Common ACPI table header */
1340 u32 header_length; /* Watchdog Header Length */
1341 u16 pci_segment; /* PCI Segment number */
1342 u8 pci_bus; /* PCI Bus number */
1343 u8 pci_device; /* PCI Device number */
1344 u8 pci_function; /* PCI Function number */
1345 u8 reserved[3];
1346 u32 timer_period; /* Period of one timer count (msec) */
1347 u32 max_count; /* Maximum counter value supported */
1348 u32 min_count; /* Minimum counter value */
1349 u8 flags;
1350 u8 reserved2[3];
1351 u32 entries; /* Number of watchdog entries that follow */
1352};
1353
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1354/* Masks for Flags field above */
1355
1356#define ACPI_WDAT_ENABLED (1)
1357#define ACPI_WDAT_STOPPED 0x80
1358
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1359/* WDAT Instruction Entries (actions) */
1360
1361struct acpi_wdat_entry {
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1362 u8 action;
1363 u8 instruction;
1364 u16 reserved;
1365 struct acpi_generic_address register_region;
1366 u32 value; /* Value used with Read/Write register */
1367 u32 mask; /* Bitmask required for this register instruction */
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1368};
1369
1370/* Values for Action field above */
1371
1372enum acpi_wdat_actions {
1373 ACPI_WDAT_RESET = 1,
1374 ACPI_WDAT_GET_CURRENT_COUNTDOWN = 4,
1375 ACPI_WDAT_GET_COUNTDOWN = 5,
1376 ACPI_WDAT_SET_COUNTDOWN = 6,
1377 ACPI_WDAT_GET_RUNNING_STATE = 8,
1378 ACPI_WDAT_SET_RUNNING_STATE = 9,
1379 ACPI_WDAT_GET_STOPPED_STATE = 10,
1380 ACPI_WDAT_SET_STOPPED_STATE = 11,
1381 ACPI_WDAT_GET_REBOOT = 16,
1382 ACPI_WDAT_SET_REBOOT = 17,
1383 ACPI_WDAT_GET_SHUTDOWN = 18,
1384 ACPI_WDAT_SET_SHUTDOWN = 19,
1385 ACPI_WDAT_GET_STATUS = 32,
1386 ACPI_WDAT_SET_STATUS = 33,
1387 ACPI_WDAT_ACTION_RESERVED = 34 /* 34 and greater are reserved */
1388};
1389
1390/* Values for Instruction field above */
1391
1392enum acpi_wdat_instructions {
1393 ACPI_WDAT_READ_VALUE = 0,
1394 ACPI_WDAT_READ_COUNTDOWN = 1,
1395 ACPI_WDAT_WRITE_VALUE = 2,
1396 ACPI_WDAT_WRITE_COUNTDOWN = 3,
1397 ACPI_WDAT_INSTRUCTION_RESERVED = 4, /* 4 and greater are reserved */
1398 ACPI_WDAT_PRESERVE_REGISTER = 0x80 /* Except for this value */
1399};
1400
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1401/*******************************************************************************
1402 *
1403 * WDDT - Watchdog Descriptor Table
1404 * Version 1
1405 *
1406 * Conforms to "Using the Intel ICH Family Watchdog Timer (WDT)",
1407 * Version 001, September 2002
1408 *
1409 ******************************************************************************/
1410
1411struct acpi_table_wddt {
1412 struct acpi_table_header header; /* Common ACPI table header */
1413 u16 spec_version;
1414 u16 table_version;
1415 u16 pci_vendor_id;
1416 struct acpi_generic_address address;
1417 u16 max_count; /* Maximum counter value supported */
1418 u16 min_count; /* Minimum counter value supported */
1419 u16 period;
1420 u16 status;
1421 u16 capability;
1422};
1423
1424/* Flags for Status field above */
1425
1426#define ACPI_WDDT_AVAILABLE (1)
1427#define ACPI_WDDT_ACTIVE (1<<1)
1428#define ACPI_WDDT_TCO_OS_OWNED (1<<2)
1429#define ACPI_WDDT_USER_RESET (1<<11)
1430#define ACPI_WDDT_WDT_RESET (1<<12)
1431#define ACPI_WDDT_POWER_FAIL (1<<13)
1432#define ACPI_WDDT_UNKNOWN_RESET (1<<14)
1433
1434/* Flags for Capability field above */
1435
1436#define ACPI_WDDT_AUTO_RESET (1)
1437#define ACPI_WDDT_ALERT_SUPPORT (1<<1)
1438
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1439/*******************************************************************************
1440 *
1441 * WDRT - Watchdog Resource Table
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1442 * Version 1
1443 *
1444 * Conforms to "Watchdog Timer Hardware Requirements for Windows Server 2003",
1445 * Version 1.01, August 28, 2006
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1446 *
1447 ******************************************************************************/
1448
1449struct acpi_table_wdrt {
1450 struct acpi_table_header header; /* Common ACPI table header */
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1451 struct acpi_generic_address control_register;
1452 struct acpi_generic_address count_register;
1453 u16 pci_device_id;
1454 u16 pci_vendor_id;
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1455 u8 pci_bus; /* PCI Bus number */
1456 u8 pci_device; /* PCI Device number */
1457 u8 pci_function; /* PCI Function number */
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1458 u8 pci_segment; /* PCI Segment number */
1459 u16 max_count; /* Maximum counter value supported */
1460 u8 units;
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1461};
1462
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1463/* Reset to default packing */
1464
1465#pragma pack()
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1466
1467#endif /* __ACTBL2_H__ */