xref: /linux/include/acpi/actbl2.h (revision b85d45947951d23cb22d90caecf4c1eb81342c96)
1 /******************************************************************************
2  *
3  * Name: actbl2.h - ACPI Table Definitions (tables not in ACPI spec)
4  *
5  *****************************************************************************/
6 
7 /*
8  * Copyright (C) 2000 - 2015, 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 __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  *
54  * Generally, the tables in this file are defined by third-party specifications,
55  * and are not defined directly by the ACPI specification itself.
56  *
57  ******************************************************************************/
58 
59 /*
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.
63  */
64 #define ACPI_SIG_ASF            "ASF!"	/* Alert Standard Format table */
65 #define ACPI_SIG_BOOT           "BOOT"	/* Simple Boot Flag Table */
66 #define ACPI_SIG_CSRT           "CSRT"	/* Core System Resource Table */
67 #define ACPI_SIG_DBG2           "DBG2"	/* Debug Port table type 2 */
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 */
71 #define ACPI_SIG_IBFT           "IBFT"	/* iSCSI Boot Firmware Table */
72 #define ACPI_SIG_IORT           "IORT"	/* IO Remapping Table */
73 #define ACPI_SIG_IVRS           "IVRS"	/* I/O Virtualization Reporting Structure */
74 #define ACPI_SIG_LPIT           "LPIT"	/* Low Power Idle Table */
75 #define ACPI_SIG_MCFG           "MCFG"	/* PCI Memory Mapped Configuration table */
76 #define ACPI_SIG_MCHI           "MCHI"	/* Management Controller Host Interface table */
77 #define ACPI_SIG_MSDM           "MSDM"	/* Microsoft Data Management Table */
78 #define ACPI_SIG_MTMR           "MTMR"	/* MID Timer table */
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 */
83 #define ACPI_SIG_TPM2           "TPM2"	/* Trusted Platform Module 2.0 H/W interface table */
84 #define ACPI_SIG_UEFI           "UEFI"	/* Uefi Boot Optimization Table */
85 #define ACPI_SIG_VRTC           "VRTC"	/* Virtual Real Time Clock Table */
86 #define ACPI_SIG_WAET           "WAET"	/* Windows ACPI Emulated devices Table */
87 #define ACPI_SIG_WDAT           "WDAT"	/* Watchdog Action Table */
88 #define ACPI_SIG_WDDT           "WDDT"	/* Watchdog Timer Description Table */
89 #define ACPI_SIG_WDRT           "WDRT"	/* Watchdog Resource Table */
90 
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 
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 /*
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
116  */
117 
118 /*******************************************************************************
119  *
120  * ASF - Alert Standard Format table (Signature "ASF!")
121  *       Revision 0x10
122  *
123  * Conforms to the Alert Standard Format Specification V2.0, 23 April 2003
124  *
125  ******************************************************************************/
126 
127 struct acpi_table_asf {
128 	struct acpi_table_header header;	/* Common ACPI table header */
129 };
130 
131 /* ASF subtable header */
132 
133 struct acpi_asf_header {
134 	u8 type;
135 	u8 reserved;
136 	u16 length;
137 };
138 
139 /* Values for Type field above */
140 
141 enum 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 
156 struct 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 
166 /* Masks for Flags field above */
167 
168 #define ACPI_ASF_SMBUS_PROTOCOLS    (1)
169 
170 /* 1: ASF Alerts */
171 
172 struct 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 
180 struct 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 
197 struct acpi_asf_remote {
198 	struct acpi_asf_header header;
199 	u8 controls;
200 	u8 data_length;
201 	u16 reserved2;
202 };
203 
204 struct 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 
213 struct 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 
226 struct 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
235  *        Version 1
236  *
237  * Conforms to the "Simple Boot Flag Specification", Version 2.1
238  *
239  ******************************************************************************/
240 
241 struct 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 
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 
256 struct acpi_table_csrt {
257 	struct acpi_table_header header;	/* Common ACPI table header */
258 };
259 
260 /* Resource Group subtable */
261 
262 struct 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;
270 	u32 shared_info_length;
271 
272 	/* Shared data immediately follows (Length = shared_info_length) */
273 };
274 
275 /* Shared Info subtable */
276 
277 struct 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) */
292 };
293 
294 /* Resource Descriptor subtable */
295 
296 struct 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 
328 struct acpi_table_dbg2 {
329 	struct acpi_table_header header;	/* Common ACPI table header */
330 	u32 info_offset;
331 	u32 info_count;
332 };
333 
334 struct acpi_dbg2_header {
335 	u32 info_offset;
336 	u32 info_count;
337 };
338 
339 /* Debug Device Information Subtable */
340 
341 struct 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 
380 /*******************************************************************************
381  *
382  * DBGP - Debug Port table
383  *        Version 1
384  *
385  * Conforms to the "Debug Port Specification", Version 1.00, 2/9/2000
386  *
387  ******************************************************************************/
388 
389 struct 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
399  *        Version 1
400  *
401  * Conforms to "Intel Virtualization Technology for Directed I/O",
402  * Version 2.2, Sept. 2013
403  *
404  ******************************************************************************/
405 
406 struct 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 
413 /* Masks for Flags field above */
414 
415 #define ACPI_DMAR_INTR_REMAP        (1)
416 
417 /* DMAR subtable header */
418 
419 struct acpi_dmar_header {
420 	u16 type;
421 	u16 length;
422 };
423 
424 /* Values for subtable type in struct acpi_dmar_header */
425 
426 enum acpi_dmar_type {
427 	ACPI_DMAR_TYPE_HARDWARE_UNIT = 0,
428 	ACPI_DMAR_TYPE_RESERVED_MEMORY = 1,
429 	ACPI_DMAR_TYPE_ROOT_ATS = 2,
430 	ACPI_DMAR_TYPE_HARDWARE_AFFINITY = 3,
431 	ACPI_DMAR_TYPE_NAMESPACE = 4,
432 	ACPI_DMAR_TYPE_RESERVED = 5	/* 5 and greater are reserved */
433 };
434 
435 /* DMAR Device Scope structure */
436 
437 struct acpi_dmar_device_scope {
438 	u8 entry_type;
439 	u8 length;
440 	u16 reserved;
441 	u8 enumeration_id;
442 	u8 bus;
443 };
444 
445 /* Values for entry_type in struct acpi_dmar_device_scope - device types */
446 
447 enum 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,
453 	ACPI_DMAR_SCOPE_TYPE_NAMESPACE = 5,
454 	ACPI_DMAR_SCOPE_TYPE_RESERVED = 6	/* 6 and greater are reserved */
455 };
456 
457 struct acpi_dmar_pci_path {
458 	u8 device;
459 	u8 function;
460 };
461 
462 /*
463  * DMAR Subtables, correspond to Type in struct acpi_dmar_header
464  */
465 
466 /* 0: Hardware Unit Definition */
467 
468 struct 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 
476 /* Masks for Flags field above */
477 
478 #define ACPI_DMAR_INCLUDE_ALL       (1)
479 
480 /* 1: Reserved Memory Defininition */
481 
482 struct acpi_dmar_reserved_memory {
483 	struct acpi_dmar_header header;
484 	u16 reserved;
485 	u16 segment;
486 	u64 base_address;	/* 4K aligned base address */
487 	u64 end_address;	/* 4K aligned limit address */
488 };
489 
490 /* Masks for Flags field above */
491 
492 #define ACPI_DMAR_ALLOW_ALL         (1)
493 
494 /* 2: Root Port ATS Capability Reporting Structure */
495 
496 struct acpi_dmar_atsr {
497 	struct acpi_dmar_header header;
498 	u8 flags;
499 	u8 reserved;
500 	u16 segment;
501 };
502 
503 /* Masks for Flags field above */
504 
505 #define ACPI_DMAR_ALL_PORTS         (1)
506 
507 /* 3: Remapping Hardware Static Affinity Structure */
508 
509 struct acpi_dmar_rhsa {
510 	struct acpi_dmar_header header;
511 	u32 reserved;
512 	u64 base_address;
513 	u32 proximity_domain;
514 };
515 
516 /* 4: ACPI Namespace Device Declaration Structure */
517 
518 struct acpi_dmar_andd {
519 	struct acpi_dmar_header header;
520 	u8 reserved[3];
521 	u8 device_number;
522 	char device_name[1];
523 };
524 
525 /*******************************************************************************
526  *
527  * HPET - High Precision Event Timer table
528  *        Version 1
529  *
530  * Conforms to "IA-PC HPET (High Precision Event Timers) Specification",
531  * Version 1.0a, October 2004
532  *
533  ******************************************************************************/
534 
535 struct 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 
544 /* Masks for Flags field above */
545 
546 #define ACPI_HPET_PAGE_PROTECT_MASK (3)
547 
548 /* Values for Page Protect flags */
549 
550 enum acpi_hpet_page_protect {
551 	ACPI_HPET_NO_PAGE_PROTECT = 0,
552 	ACPI_HPET_PAGE_PROTECT4 = 1,
553 	ACPI_HPET_PAGE_PROTECT64 = 2
554 };
555 
556 /*******************************************************************************
557  *
558  * IBFT - Boot Firmware Table
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.
566  *
567  ******************************************************************************/
568 
569 struct 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 
576 struct 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 
586 enum 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 
598 struct 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 
608 struct 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 
618 struct 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 
634 struct 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 
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 
662 struct 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  */
672 struct 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 
684 enum 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 
691 struct 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 
703 struct 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  */
730 struct acpi_iort_its_group {
731 	u32 its_count;
732 	u32 identifiers[1];	/* GIC ITS identifier arrary */
733 };
734 
735 struct 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 
742 struct 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 
753 struct 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 
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 
788 struct 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 
802 struct 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 
811 enum 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 
839 struct 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 */
851 #define ACPI_IVHD_UNIT_ID_MASK      0x1F00	/* 5 bits, unit_ID */
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  */
859 struct 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 
871 enum 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 
902 struct acpi_ivrs_device4 {
903 	struct acpi_ivrs_de_header header;
904 };
905 
906 /* Types 66-67: 8-byte device entry */
907 
908 struct 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 
917 struct 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 
928 struct 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 
942 struct 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 
950 /*******************************************************************************
951  *
952  * LPIT - Low Power Idle Table
953  *
954  * Conforms to "ACPI Low Power Idle Table (LPIT)" July 2014.
955  *
956  ******************************************************************************/
957 
958 struct acpi_table_lpit {
959 	struct acpi_table_header header;	/* Common ACPI table header */
960 };
961 
962 /* LPIT subtable header */
963 
964 struct 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 
974 enum acpi_lpit_type {
975 	ACPI_LPIT_TYPE_NATIVE_CSTATE = 0x00,
976 	ACPI_LPIT_TYPE_RESERVED = 0x01	/* 1 and above are reserved */
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 
990 struct 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 
999 /*******************************************************************************
1000  *
1001  * MCFG - PCI Memory Mapped Configuration table and subtable
1002  *        Version 1
1003  *
1004  * Conforms to "PCI Firmware Specification", Revision 3.0, June 20, 2005
1005  *
1006  ******************************************************************************/
1007 
1008 struct acpi_table_mcfg {
1009 	struct acpi_table_header header;	/* Common ACPI table header */
1010 	u8 reserved[8];
1011 };
1012 
1013 /* Subtable */
1014 
1015 struct 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 
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 
1033 struct 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 
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 
1060 struct acpi_table_msdm {
1061 	struct acpi_table_header header;	/* Common ACPI table header */
1062 };
1063 
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 
1075 struct acpi_table_mtmr {
1076 	struct acpi_table_header header;	/* Common ACPI table header */
1077 };
1078 
1079 /* MTMR entry */
1080 
1081 struct acpi_mtmr_entry {
1082 	struct acpi_generic_address physical_address;
1083 	u32 frequency;
1084 	u32 irq;
1085 };
1086 
1087 /*******************************************************************************
1088  *
1089  * SLIC - Software Licensing Description Table
1090  *
1091  * Conforms to "Microsoft Software Licensing Tables (SLIC and MSDM)",
1092  * November 29, 2011. Copyright 2011 Microsoft
1093  *
1094  ******************************************************************************/
1095 
1096 /* Basic SLIC table is only the common ACPI header */
1097 
1098 struct acpi_table_slic {
1099 	struct acpi_table_header header;	/* Common ACPI table header */
1100 };
1101 
1102 /*******************************************************************************
1103  *
1104  * SPCR - Serial Port Console Redirection table
1105  *        Version 1
1106  *
1107  * Conforms to "Serial Port Console Redirection Table",
1108  * Version 1.00, January 11, 2002
1109  *
1110  ******************************************************************************/
1111 
1112 struct 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 
1136 /* Masks for pci_flags field above */
1137 
1138 #define ACPI_SPCR_DO_NOT_DISABLE    (1)
1139 
1140 /*******************************************************************************
1141  *
1142  * SPMI - Server Platform Management Interface table
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.
1148  *
1149  ******************************************************************************/
1150 
1151 struct acpi_table_spmi {
1152 	struct acpi_table_header header;	/* Common ACPI table header */
1153 	u8 interface_type;
1154 	u8 reserved;		/* Must be 1 */
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;
1166 	u8 reserved2;
1167 };
1168 
1169 /* Values for interface_type above */
1170 
1171 enum 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 */
1178 };
1179 
1180 /*******************************************************************************
1181  *
1182  * TCPA - Trusted Computing Platform Alliance table
1183  *        Version 2
1184  *
1185  * Conforms to "TCG ACPI Specification, Family 1.2 and 2.0",
1186  * December 19, 2014
1187  *
1188  * NOTE: There are two versions of the table with the same signature --
1189  * the client version and the server version. The common platform_class
1190  * field is used to differentiate the two types of tables.
1191  *
1192  ******************************************************************************/
1193 
1194 struct acpi_table_tcpa_hdr {
1195 	struct acpi_table_header header;	/* Common ACPI table header */
1196 	u16 platform_class;
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 
1206 struct acpi_table_tcpa_client {
1207 	u32 minimum_log_length;	/* Minimum length for the event log area */
1208 	u64 log_address;	/* Address of the event log area */
1209 };
1210 
1211 struct acpi_table_tcpa_server {
1212 	u16 reserved;
1213 	u64 minimum_log_length;	/* Minimum length for the event log area */
1214 	u64 log_address;	/* Address of the event log area */
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 
1253 struct 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 
1263 /* Values for start_method above */
1264 
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
1270 
1271 /*******************************************************************************
1272  *
1273  * UEFI - UEFI Boot optimization Table
1274  *        Version 1
1275  *
1276  * Conforms to "Unified Extensible Firmware Interface Specification",
1277  * Version 2.3, May 8, 2009
1278  *
1279  ******************************************************************************/
1280 
1281 struct 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 */
1285 };
1286 
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 
1298 struct acpi_table_vrtc {
1299 	struct acpi_table_header header;	/* Common ACPI table header */
1300 };
1301 
1302 /* VRTC entry */
1303 
1304 struct acpi_vrtc_entry {
1305 	struct acpi_generic_address physical_address;
1306 	u32 irq;
1307 };
1308 
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 
1318 struct 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 
1328 /*******************************************************************************
1329  *
1330  * WDAT - Watchdog Action Table
1331  *        Version 1
1332  *
1333  * Conforms to "Hardware Watchdog Timers Design Specification",
1334  * Copyright 2006 Microsoft Corporation.
1335  *
1336  ******************************************************************************/
1337 
1338 struct 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 
1354 /* Masks for Flags field above */
1355 
1356 #define ACPI_WDAT_ENABLED           (1)
1357 #define ACPI_WDAT_STOPPED           0x80
1358 
1359 /* WDAT Instruction Entries (actions) */
1360 
1361 struct acpi_wdat_entry {
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 */
1368 };
1369 
1370 /* Values for Action field above */
1371 
1372 enum 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 
1392 enum 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 
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 
1411 struct 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 
1439 /*******************************************************************************
1440  *
1441  * WDRT - Watchdog Resource Table
1442  *        Version 1
1443  *
1444  * Conforms to "Watchdog Timer Hardware Requirements for Windows Server 2003",
1445  * Version 1.01, August 28, 2006
1446  *
1447  ******************************************************************************/
1448 
1449 struct acpi_table_wdrt {
1450 	struct acpi_table_header header;	/* Common ACPI table header */
1451 	struct acpi_generic_address control_register;
1452 	struct acpi_generic_address count_register;
1453 	u16 pci_device_id;
1454 	u16 pci_vendor_id;
1455 	u8 pci_bus;		/* PCI Bus number */
1456 	u8 pci_device;		/* PCI Device number */
1457 	u8 pci_function;	/* PCI Function number */
1458 	u8 pci_segment;		/* PCI Segment number */
1459 	u16 max_count;		/* Maximum counter value supported */
1460 	u8 units;
1461 };
1462 
1463 /* Reset to default packing */
1464 
1465 #pragma pack()
1466 
1467 #endif				/* __ACTBL2_H__ */
1468