xref: /openbmc/linux/include/acpi/actbl2.h (revision dd1431e5)
1 /* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
2 /******************************************************************************
3  *
4  * Name: actbl2.h - ACPI Table Definitions (tables not in ACPI spec)
5  *
6  * Copyright (C) 2000 - 2021, Intel Corp.
7  *
8  *****************************************************************************/
9 
10 #ifndef __ACTBL2_H__
11 #define __ACTBL2_H__
12 
13 /*******************************************************************************
14  *
15  * Additional ACPI Tables (2)
16  *
17  * These tables are not consumed directly by the ACPICA subsystem, but are
18  * included here to support device drivers and the AML disassembler.
19  *
20  ******************************************************************************/
21 
22 /*
23  * Values for description table header signatures for tables defined in this
24  * file. Useful because they make it more difficult to inadvertently type in
25  * the wrong signature.
26  */
27 #define ACPI_SIG_IORT           "IORT"	/* IO Remapping Table */
28 #define ACPI_SIG_IVRS           "IVRS"	/* I/O Virtualization Reporting Structure */
29 #define ACPI_SIG_LPIT           "LPIT"	/* Low Power Idle Table */
30 #define ACPI_SIG_MADT           "APIC"	/* Multiple APIC Description Table */
31 #define ACPI_SIG_MCFG           "MCFG"	/* PCI Memory Mapped Configuration table */
32 #define ACPI_SIG_MCHI           "MCHI"	/* Management Controller Host Interface table */
33 #define ACPI_SIG_MPST           "MPST"	/* Memory Power State Table */
34 #define ACPI_SIG_MSCT           "MSCT"	/* Maximum System Characteristics Table */
35 #define ACPI_SIG_MSDM           "MSDM"	/* Microsoft Data Management Table */
36 #define ACPI_SIG_NFIT           "NFIT"	/* NVDIMM Firmware Interface Table */
37 #define ACPI_SIG_PCCT           "PCCT"	/* Platform Communications Channel Table */
38 #define ACPI_SIG_PDTT           "PDTT"	/* Platform Debug Trigger Table */
39 #define ACPI_SIG_PHAT           "PHAT"	/* Platform Health Assessment Table */
40 #define ACPI_SIG_PMTT           "PMTT"	/* Platform Memory Topology Table */
41 #define ACPI_SIG_PPTT           "PPTT"	/* Processor Properties Topology Table */
42 #define ACPI_SIG_RASF           "RASF"	/* RAS Feature table */
43 #define ACPI_SIG_SBST           "SBST"	/* Smart Battery Specification Table */
44 #define ACPI_SIG_SDEI           "SDEI"	/* Software Delegated Exception Interface Table */
45 #define ACPI_SIG_SDEV           "SDEV"	/* Secure Devices table */
46 #define ACPI_SIG_NHLT           "NHLT"	/* Non-HDAudio Link Table */
47 
48 /*
49  * All tables must be byte-packed to match the ACPI specification, since
50  * the tables are provided by the system BIOS.
51  */
52 #pragma pack(1)
53 
54 /*
55  * Note: C bitfields are not used for this reason:
56  *
57  * "Bitfields are great and easy to read, but unfortunately the C language
58  * does not specify the layout of bitfields in memory, which means they are
59  * essentially useless for dealing with packed data in on-disk formats or
60  * binary wire protocols." (Or ACPI tables and buffers.) "If you ask me,
61  * this decision was a design error in C. Ritchie could have picked an order
62  * and stuck with it." Norman Ramsey.
63  * See http://stackoverflow.com/a/1053662/41661
64  */
65 
66 /*******************************************************************************
67  *
68  * IORT - IO Remapping Table
69  *
70  * Conforms to "IO Remapping Table System Software on ARM Platforms",
71  * Document number: ARM DEN 0049E.b, Feb 2021
72  *
73  ******************************************************************************/
74 
75 struct acpi_table_iort {
76 	struct acpi_table_header header;
77 	u32 node_count;
78 	u32 node_offset;
79 	u32 reserved;
80 };
81 
82 /*
83  * IORT subtables
84  */
85 struct acpi_iort_node {
86 	u8 type;
87 	u16 length;
88 	u8 revision;
89 	u32 identifier;
90 	u32 mapping_count;
91 	u32 mapping_offset;
92 	char node_data[1];
93 };
94 
95 /* Values for subtable Type above */
96 
97 enum acpi_iort_node_type {
98 	ACPI_IORT_NODE_ITS_GROUP = 0x00,
99 	ACPI_IORT_NODE_NAMED_COMPONENT = 0x01,
100 	ACPI_IORT_NODE_PCI_ROOT_COMPLEX = 0x02,
101 	ACPI_IORT_NODE_SMMU = 0x03,
102 	ACPI_IORT_NODE_SMMU_V3 = 0x04,
103 	ACPI_IORT_NODE_PMCG = 0x05,
104 	ACPI_IORT_NODE_RMR = 0x06,
105 };
106 
107 struct acpi_iort_id_mapping {
108 	u32 input_base;		/* Lowest value in input range */
109 	u32 id_count;		/* Number of IDs */
110 	u32 output_base;	/* Lowest value in output range */
111 	u32 output_reference;	/* A reference to the output node */
112 	u32 flags;
113 };
114 
115 /* Masks for Flags field above for IORT subtable */
116 
117 #define ACPI_IORT_ID_SINGLE_MAPPING (1)
118 
119 struct acpi_iort_memory_access {
120 	u32 cache_coherency;
121 	u8 hints;
122 	u16 reserved;
123 	u8 memory_flags;
124 };
125 
126 /* Values for cache_coherency field above */
127 
128 #define ACPI_IORT_NODE_COHERENT         0x00000001	/* The device node is fully coherent */
129 #define ACPI_IORT_NODE_NOT_COHERENT     0x00000000	/* The device node is not coherent */
130 
131 /* Masks for Hints field above */
132 
133 #define ACPI_IORT_HT_TRANSIENT          (1)
134 #define ACPI_IORT_HT_WRITE              (1<<1)
135 #define ACPI_IORT_HT_READ               (1<<2)
136 #define ACPI_IORT_HT_OVERRIDE           (1<<3)
137 
138 /* Masks for memory_flags field above */
139 
140 #define ACPI_IORT_MF_COHERENCY          (1)
141 #define ACPI_IORT_MF_ATTRIBUTES         (1<<1)
142 
143 /*
144  * IORT node specific subtables
145  */
146 struct acpi_iort_its_group {
147 	u32 its_count;
148 	u32 identifiers[1];	/* GIC ITS identifier array */
149 };
150 
151 struct acpi_iort_named_component {
152 	u32 node_flags;
153 	u64 memory_properties;	/* Memory access properties */
154 	u8 memory_address_limit;	/* Memory address size limit */
155 	char device_name[1];	/* Path of namespace object */
156 };
157 
158 /* Masks for Flags field above */
159 
160 #define ACPI_IORT_NC_STALL_SUPPORTED    (1)
161 #define ACPI_IORT_NC_PASID_BITS         (31<<1)
162 
163 struct acpi_iort_root_complex {
164 	u64 memory_properties;	/* Memory access properties */
165 	u32 ats_attribute;
166 	u32 pci_segment_number;
167 	u8 memory_address_limit;	/* Memory address size limit */
168 	u8 reserved[3];		/* Reserved, must be zero */
169 };
170 
171 /* Masks for ats_attribute field above */
172 
173 #define ACPI_IORT_ATS_SUPPORTED         (1)	/* The root complex ATS support */
174 #define ACPI_IORT_PRI_SUPPORTED         (1<<1)	/* The root complex PRI support */
175 #define ACPI_IORT_PASID_FWD_SUPPORTED   (1<<2)	/* The root complex PASID forward support */
176 
177 struct acpi_iort_smmu {
178 	u64 base_address;	/* SMMU base address */
179 	u64 span;		/* Length of memory range */
180 	u32 model;
181 	u32 flags;
182 	u32 global_interrupt_offset;
183 	u32 context_interrupt_count;
184 	u32 context_interrupt_offset;
185 	u32 pmu_interrupt_count;
186 	u32 pmu_interrupt_offset;
187 	u64 interrupts[1];	/* Interrupt array */
188 };
189 
190 /* Values for Model field above */
191 
192 #define ACPI_IORT_SMMU_V1               0x00000000	/* Generic SMMUv1 */
193 #define ACPI_IORT_SMMU_V2               0x00000001	/* Generic SMMUv2 */
194 #define ACPI_IORT_SMMU_CORELINK_MMU400  0x00000002	/* ARM Corelink MMU-400 */
195 #define ACPI_IORT_SMMU_CORELINK_MMU500  0x00000003	/* ARM Corelink MMU-500 */
196 #define ACPI_IORT_SMMU_CORELINK_MMU401  0x00000004	/* ARM Corelink MMU-401 */
197 #define ACPI_IORT_SMMU_CAVIUM_THUNDERX  0x00000005	/* Cavium thunder_x SMMUv2 */
198 
199 /* Masks for Flags field above */
200 
201 #define ACPI_IORT_SMMU_DVM_SUPPORTED    (1)
202 #define ACPI_IORT_SMMU_COHERENT_WALK    (1<<1)
203 
204 /* Global interrupt format */
205 
206 struct acpi_iort_smmu_gsi {
207 	u32 nsg_irpt;
208 	u32 nsg_irpt_flags;
209 	u32 nsg_cfg_irpt;
210 	u32 nsg_cfg_irpt_flags;
211 };
212 
213 struct acpi_iort_smmu_v3 {
214 	u64 base_address;	/* SMMUv3 base address */
215 	u32 flags;
216 	u32 reserved;
217 	u64 vatos_address;
218 	u32 model;
219 	u32 event_gsiv;
220 	u32 pri_gsiv;
221 	u32 gerr_gsiv;
222 	u32 sync_gsiv;
223 	u32 pxm;
224 	u32 id_mapping_index;
225 };
226 
227 /* Values for Model field above */
228 
229 #define ACPI_IORT_SMMU_V3_GENERIC           0x00000000	/* Generic SMMUv3 */
230 #define ACPI_IORT_SMMU_V3_HISILICON_HI161X  0x00000001	/* hi_silicon Hi161x SMMUv3 */
231 #define ACPI_IORT_SMMU_V3_CAVIUM_CN99XX     0x00000002	/* Cavium CN99xx SMMUv3 */
232 
233 /* Masks for Flags field above */
234 
235 #define ACPI_IORT_SMMU_V3_COHACC_OVERRIDE   (1)
236 #define ACPI_IORT_SMMU_V3_HTTU_OVERRIDE     (3<<1)
237 #define ACPI_IORT_SMMU_V3_PXM_VALID         (1<<3)
238 
239 struct acpi_iort_pmcg {
240 	u64 page0_base_address;
241 	u32 overflow_gsiv;
242 	u32 node_reference;
243 	u64 page1_base_address;
244 };
245 
246 struct acpi_iort_rmr {
247 	u32 flags;
248 	u32 rmr_count;
249 	u32 rmr_offset;
250 };
251 
252 struct acpi_iort_rmr_desc {
253 	u64 base_address;
254 	u64 length;
255 	u32 reserved;
256 };
257 
258 /*******************************************************************************
259  *
260  * IVRS - I/O Virtualization Reporting Structure
261  *        Version 1
262  *
263  * Conforms to "AMD I/O Virtualization Technology (IOMMU) Specification",
264  * Revision 1.26, February 2009.
265  *
266  ******************************************************************************/
267 
268 struct acpi_table_ivrs {
269 	struct acpi_table_header header;	/* Common ACPI table header */
270 	u32 info;		/* Common virtualization info */
271 	u64 reserved;
272 };
273 
274 /* Values for Info field above */
275 
276 #define ACPI_IVRS_PHYSICAL_SIZE     0x00007F00	/* 7 bits, physical address size */
277 #define ACPI_IVRS_VIRTUAL_SIZE      0x003F8000	/* 7 bits, virtual address size */
278 #define ACPI_IVRS_ATS_RESERVED      0x00400000	/* ATS address translation range reserved */
279 
280 /* IVRS subtable header */
281 
282 struct acpi_ivrs_header {
283 	u8 type;		/* Subtable type */
284 	u8 flags;
285 	u16 length;		/* Subtable length */
286 	u16 device_id;		/* ID of IOMMU */
287 };
288 
289 /* Values for subtable Type above */
290 
291 enum acpi_ivrs_type {
292 	ACPI_IVRS_TYPE_HARDWARE1 = 0x10,
293 	ACPI_IVRS_TYPE_HARDWARE2 = 0x11,
294 	ACPI_IVRS_TYPE_HARDWARE3 = 0x40,
295 	ACPI_IVRS_TYPE_MEMORY1 = 0x20,
296 	ACPI_IVRS_TYPE_MEMORY2 = 0x21,
297 	ACPI_IVRS_TYPE_MEMORY3 = 0x22
298 };
299 
300 /* Masks for Flags field above for IVHD subtable */
301 
302 #define ACPI_IVHD_TT_ENABLE         (1)
303 #define ACPI_IVHD_PASS_PW           (1<<1)
304 #define ACPI_IVHD_RES_PASS_PW       (1<<2)
305 #define ACPI_IVHD_ISOC              (1<<3)
306 #define ACPI_IVHD_IOTLB             (1<<4)
307 
308 /* Masks for Flags field above for IVMD subtable */
309 
310 #define ACPI_IVMD_UNITY             (1)
311 #define ACPI_IVMD_READ              (1<<1)
312 #define ACPI_IVMD_WRITE             (1<<2)
313 #define ACPI_IVMD_EXCLUSION_RANGE   (1<<3)
314 
315 /*
316  * IVRS subtables, correspond to Type in struct acpi_ivrs_header
317  */
318 
319 /* 0x10: I/O Virtualization Hardware Definition Block (IVHD) */
320 
321 struct acpi_ivrs_hardware_10 {
322 	struct acpi_ivrs_header header;
323 	u16 capability_offset;	/* Offset for IOMMU control fields */
324 	u64 base_address;	/* IOMMU control registers */
325 	u16 pci_segment_group;
326 	u16 info;		/* MSI number and unit ID */
327 	u32 feature_reporting;
328 };
329 
330 /* 0x11: I/O Virtualization Hardware Definition Block (IVHD) */
331 
332 struct acpi_ivrs_hardware_11 {
333 	struct acpi_ivrs_header header;
334 	u16 capability_offset;	/* Offset for IOMMU control fields */
335 	u64 base_address;	/* IOMMU control registers */
336 	u16 pci_segment_group;
337 	u16 info;		/* MSI number and unit ID */
338 	u32 attributes;
339 	u64 efr_register_image;
340 	u64 reserved;
341 };
342 
343 /* Masks for Info field above */
344 
345 #define ACPI_IVHD_MSI_NUMBER_MASK   0x001F	/* 5 bits, MSI message number */
346 #define ACPI_IVHD_UNIT_ID_MASK      0x1F00	/* 5 bits, unit_ID */
347 
348 /*
349  * Device Entries for IVHD subtable, appear after struct acpi_ivrs_hardware structure.
350  * Upper two bits of the Type field are the (encoded) length of the structure.
351  * Currently, only 4 and 8 byte entries are defined. 16 and 32 byte entries
352  * are reserved for future use but not defined.
353  */
354 struct acpi_ivrs_de_header {
355 	u8 type;
356 	u16 id;
357 	u8 data_setting;
358 };
359 
360 /* Length of device entry is in the top two bits of Type field above */
361 
362 #define ACPI_IVHD_ENTRY_LENGTH      0xC0
363 
364 /* Values for device entry Type field above */
365 
366 enum acpi_ivrs_device_entry_type {
367 	/* 4-byte device entries, all use struct acpi_ivrs_device4 */
368 
369 	ACPI_IVRS_TYPE_PAD4 = 0,
370 	ACPI_IVRS_TYPE_ALL = 1,
371 	ACPI_IVRS_TYPE_SELECT = 2,
372 	ACPI_IVRS_TYPE_START = 3,
373 	ACPI_IVRS_TYPE_END = 4,
374 
375 	/* 8-byte device entries */
376 
377 	ACPI_IVRS_TYPE_PAD8 = 64,
378 	ACPI_IVRS_TYPE_NOT_USED = 65,
379 	ACPI_IVRS_TYPE_ALIAS_SELECT = 66,	/* Uses struct acpi_ivrs_device8a */
380 	ACPI_IVRS_TYPE_ALIAS_START = 67,	/* Uses struct acpi_ivrs_device8a */
381 	ACPI_IVRS_TYPE_EXT_SELECT = 70,	/* Uses struct acpi_ivrs_device8b */
382 	ACPI_IVRS_TYPE_EXT_START = 71,	/* Uses struct acpi_ivrs_device8b */
383 	ACPI_IVRS_TYPE_SPECIAL = 72,	/* Uses struct acpi_ivrs_device8c */
384 
385 	/* Variable-length device entries */
386 
387 	ACPI_IVRS_TYPE_HID = 240	/* Uses ACPI_IVRS_DEVICE_HID */
388 };
389 
390 /* Values for Data field above */
391 
392 #define ACPI_IVHD_INIT_PASS         (1)
393 #define ACPI_IVHD_EINT_PASS         (1<<1)
394 #define ACPI_IVHD_NMI_PASS          (1<<2)
395 #define ACPI_IVHD_SYSTEM_MGMT       (3<<4)
396 #define ACPI_IVHD_LINT0_PASS        (1<<6)
397 #define ACPI_IVHD_LINT1_PASS        (1<<7)
398 
399 /* Types 0-4: 4-byte device entry */
400 
401 struct acpi_ivrs_device4 {
402 	struct acpi_ivrs_de_header header;
403 };
404 
405 /* Types 66-67: 8-byte device entry */
406 
407 struct acpi_ivrs_device8a {
408 	struct acpi_ivrs_de_header header;
409 	u8 reserved1;
410 	u16 used_id;
411 	u8 reserved2;
412 };
413 
414 /* Types 70-71: 8-byte device entry */
415 
416 struct acpi_ivrs_device8b {
417 	struct acpi_ivrs_de_header header;
418 	u32 extended_data;
419 };
420 
421 /* Values for extended_data above */
422 
423 #define ACPI_IVHD_ATS_DISABLED      (1<<31)
424 
425 /* Type 72: 8-byte device entry */
426 
427 struct acpi_ivrs_device8c {
428 	struct acpi_ivrs_de_header header;
429 	u8 handle;
430 	u16 used_id;
431 	u8 variety;
432 };
433 
434 /* Values for Variety field above */
435 
436 #define ACPI_IVHD_IOAPIC            1
437 #define ACPI_IVHD_HPET              2
438 
439 /* Type 240: variable-length device entry */
440 
441 struct acpi_ivrs_device_hid {
442 	struct acpi_ivrs_de_header header;
443 	u64 acpi_hid;
444 	u64 acpi_cid;
445 	u8 uid_type;
446 	u8 uid_length;
447 };
448 
449 /* 0x20, 0x21, 0x22: I/O Virtualization Memory Definition Block (IVMD) */
450 
451 struct acpi_ivrs_memory {
452 	struct acpi_ivrs_header header;
453 	u16 aux_data;
454 	u64 reserved;
455 	u64 start_address;
456 	u64 memory_length;
457 };
458 
459 /*******************************************************************************
460  *
461  * LPIT - Low Power Idle Table
462  *
463  * Conforms to "ACPI Low Power Idle Table (LPIT)" July 2014.
464  *
465  ******************************************************************************/
466 
467 struct acpi_table_lpit {
468 	struct acpi_table_header header;	/* Common ACPI table header */
469 };
470 
471 /* LPIT subtable header */
472 
473 struct acpi_lpit_header {
474 	u32 type;		/* Subtable type */
475 	u32 length;		/* Subtable length */
476 	u16 unique_id;
477 	u16 reserved;
478 	u32 flags;
479 };
480 
481 /* Values for subtable Type above */
482 
483 enum acpi_lpit_type {
484 	ACPI_LPIT_TYPE_NATIVE_CSTATE = 0x00,
485 	ACPI_LPIT_TYPE_RESERVED = 0x01	/* 1 and above are reserved */
486 };
487 
488 /* Masks for Flags field above  */
489 
490 #define ACPI_LPIT_STATE_DISABLED    (1)
491 #define ACPI_LPIT_NO_COUNTER        (1<<1)
492 
493 /*
494  * LPIT subtables, correspond to Type in struct acpi_lpit_header
495  */
496 
497 /* 0x00: Native C-state instruction based LPI structure */
498 
499 struct acpi_lpit_native {
500 	struct acpi_lpit_header header;
501 	struct acpi_generic_address entry_trigger;
502 	u32 residency;
503 	u32 latency;
504 	struct acpi_generic_address residency_counter;
505 	u64 counter_frequency;
506 };
507 
508 /*******************************************************************************
509  *
510  * MADT - Multiple APIC Description Table
511  *        Version 3
512  *
513  ******************************************************************************/
514 
515 struct acpi_table_madt {
516 	struct acpi_table_header header;	/* Common ACPI table header */
517 	u32 address;		/* Physical address of local APIC */
518 	u32 flags;
519 };
520 
521 /* Masks for Flags field above */
522 
523 #define ACPI_MADT_PCAT_COMPAT       (1)	/* 00: System also has dual 8259s */
524 
525 /* Values for PCATCompat flag */
526 
527 #define ACPI_MADT_DUAL_PIC          1
528 #define ACPI_MADT_MULTIPLE_APIC     0
529 
530 /* Values for MADT subtable type in struct acpi_subtable_header */
531 
532 enum acpi_madt_type {
533 	ACPI_MADT_TYPE_LOCAL_APIC = 0,
534 	ACPI_MADT_TYPE_IO_APIC = 1,
535 	ACPI_MADT_TYPE_INTERRUPT_OVERRIDE = 2,
536 	ACPI_MADT_TYPE_NMI_SOURCE = 3,
537 	ACPI_MADT_TYPE_LOCAL_APIC_NMI = 4,
538 	ACPI_MADT_TYPE_LOCAL_APIC_OVERRIDE = 5,
539 	ACPI_MADT_TYPE_IO_SAPIC = 6,
540 	ACPI_MADT_TYPE_LOCAL_SAPIC = 7,
541 	ACPI_MADT_TYPE_INTERRUPT_SOURCE = 8,
542 	ACPI_MADT_TYPE_LOCAL_X2APIC = 9,
543 	ACPI_MADT_TYPE_LOCAL_X2APIC_NMI = 10,
544 	ACPI_MADT_TYPE_GENERIC_INTERRUPT = 11,
545 	ACPI_MADT_TYPE_GENERIC_DISTRIBUTOR = 12,
546 	ACPI_MADT_TYPE_GENERIC_MSI_FRAME = 13,
547 	ACPI_MADT_TYPE_GENERIC_REDISTRIBUTOR = 14,
548 	ACPI_MADT_TYPE_GENERIC_TRANSLATOR = 15,
549 	ACPI_MADT_TYPE_MULTIPROC_WAKEUP = 16,
550 	ACPI_MADT_TYPE_RESERVED = 17	/* 17 and greater are reserved */
551 };
552 
553 /*
554  * MADT Subtables, correspond to Type in struct acpi_subtable_header
555  */
556 
557 /* 0: Processor Local APIC */
558 
559 struct acpi_madt_local_apic {
560 	struct acpi_subtable_header header;
561 	u8 processor_id;	/* ACPI processor id */
562 	u8 id;			/* Processor's local APIC id */
563 	u32 lapic_flags;
564 };
565 
566 /* 1: IO APIC */
567 
568 struct acpi_madt_io_apic {
569 	struct acpi_subtable_header header;
570 	u8 id;			/* I/O APIC ID */
571 	u8 reserved;		/* reserved - must be zero */
572 	u32 address;		/* APIC physical address */
573 	u32 global_irq_base;	/* Global system interrupt where INTI lines start */
574 };
575 
576 /* 2: Interrupt Override */
577 
578 struct acpi_madt_interrupt_override {
579 	struct acpi_subtable_header header;
580 	u8 bus;			/* 0 - ISA */
581 	u8 source_irq;		/* Interrupt source (IRQ) */
582 	u32 global_irq;		/* Global system interrupt */
583 	u16 inti_flags;
584 };
585 
586 /* 3: NMI Source */
587 
588 struct acpi_madt_nmi_source {
589 	struct acpi_subtable_header header;
590 	u16 inti_flags;
591 	u32 global_irq;		/* Global system interrupt */
592 };
593 
594 /* 4: Local APIC NMI */
595 
596 struct acpi_madt_local_apic_nmi {
597 	struct acpi_subtable_header header;
598 	u8 processor_id;	/* ACPI processor id */
599 	u16 inti_flags;
600 	u8 lint;		/* LINTn to which NMI is connected */
601 };
602 
603 /* 5: Address Override */
604 
605 struct acpi_madt_local_apic_override {
606 	struct acpi_subtable_header header;
607 	u16 reserved;		/* Reserved, must be zero */
608 	u64 address;		/* APIC physical address */
609 };
610 
611 /* 6: I/O Sapic */
612 
613 struct acpi_madt_io_sapic {
614 	struct acpi_subtable_header header;
615 	u8 id;			/* I/O SAPIC ID */
616 	u8 reserved;		/* Reserved, must be zero */
617 	u32 global_irq_base;	/* Global interrupt for SAPIC start */
618 	u64 address;		/* SAPIC physical address */
619 };
620 
621 /* 7: Local Sapic */
622 
623 struct acpi_madt_local_sapic {
624 	struct acpi_subtable_header header;
625 	u8 processor_id;	/* ACPI processor id */
626 	u8 id;			/* SAPIC ID */
627 	u8 eid;			/* SAPIC EID */
628 	u8 reserved[3];		/* Reserved, must be zero */
629 	u32 lapic_flags;
630 	u32 uid;		/* Numeric UID - ACPI 3.0 */
631 	char uid_string[1];	/* String UID  - ACPI 3.0 */
632 };
633 
634 /* 8: Platform Interrupt Source */
635 
636 struct acpi_madt_interrupt_source {
637 	struct acpi_subtable_header header;
638 	u16 inti_flags;
639 	u8 type;		/* 1=PMI, 2=INIT, 3=corrected */
640 	u8 id;			/* Processor ID */
641 	u8 eid;			/* Processor EID */
642 	u8 io_sapic_vector;	/* Vector value for PMI interrupts */
643 	u32 global_irq;		/* Global system interrupt */
644 	u32 flags;		/* Interrupt Source Flags */
645 };
646 
647 /* Masks for Flags field above */
648 
649 #define ACPI_MADT_CPEI_OVERRIDE     (1)
650 
651 /* 9: Processor Local X2APIC (ACPI 4.0) */
652 
653 struct acpi_madt_local_x2apic {
654 	struct acpi_subtable_header header;
655 	u16 reserved;		/* reserved - must be zero */
656 	u32 local_apic_id;	/* Processor x2APIC ID  */
657 	u32 lapic_flags;
658 	u32 uid;		/* ACPI processor UID */
659 };
660 
661 /* 10: Local X2APIC NMI (ACPI 4.0) */
662 
663 struct acpi_madt_local_x2apic_nmi {
664 	struct acpi_subtable_header header;
665 	u16 inti_flags;
666 	u32 uid;		/* ACPI processor UID */
667 	u8 lint;		/* LINTn to which NMI is connected */
668 	u8 reserved[3];		/* reserved - must be zero */
669 };
670 
671 /* 11: Generic interrupt - GICC (ACPI 5.0 + ACPI 6.0 + ACPI 6.3 changes) */
672 
673 struct acpi_madt_generic_interrupt {
674 	struct acpi_subtable_header header;
675 	u16 reserved;		/* reserved - must be zero */
676 	u32 cpu_interface_number;
677 	u32 uid;
678 	u32 flags;
679 	u32 parking_version;
680 	u32 performance_interrupt;
681 	u64 parked_address;
682 	u64 base_address;
683 	u64 gicv_base_address;
684 	u64 gich_base_address;
685 	u32 vgic_interrupt;
686 	u64 gicr_base_address;
687 	u64 arm_mpidr;
688 	u8 efficiency_class;
689 	u8 reserved2[1];
690 	u16 spe_interrupt;	/* ACPI 6.3 */
691 };
692 
693 /* Masks for Flags field above */
694 
695 /* ACPI_MADT_ENABLED                    (1)      Processor is usable if set */
696 #define ACPI_MADT_PERFORMANCE_IRQ_MODE  (1<<1)	/* 01: Performance Interrupt Mode */
697 #define ACPI_MADT_VGIC_IRQ_MODE         (1<<2)	/* 02: VGIC Maintenance Interrupt mode */
698 
699 /* 12: Generic Distributor (ACPI 5.0 + ACPI 6.0 changes) */
700 
701 struct acpi_madt_generic_distributor {
702 	struct acpi_subtable_header header;
703 	u16 reserved;		/* reserved - must be zero */
704 	u32 gic_id;
705 	u64 base_address;
706 	u32 global_irq_base;
707 	u8 version;
708 	u8 reserved2[3];	/* reserved - must be zero */
709 };
710 
711 /* Values for Version field above */
712 
713 enum acpi_madt_gic_version {
714 	ACPI_MADT_GIC_VERSION_NONE = 0,
715 	ACPI_MADT_GIC_VERSION_V1 = 1,
716 	ACPI_MADT_GIC_VERSION_V2 = 2,
717 	ACPI_MADT_GIC_VERSION_V3 = 3,
718 	ACPI_MADT_GIC_VERSION_V4 = 4,
719 	ACPI_MADT_GIC_VERSION_RESERVED = 5	/* 5 and greater are reserved */
720 };
721 
722 /* 13: Generic MSI Frame (ACPI 5.1) */
723 
724 struct acpi_madt_generic_msi_frame {
725 	struct acpi_subtable_header header;
726 	u16 reserved;		/* reserved - must be zero */
727 	u32 msi_frame_id;
728 	u64 base_address;
729 	u32 flags;
730 	u16 spi_count;
731 	u16 spi_base;
732 };
733 
734 /* Masks for Flags field above */
735 
736 #define ACPI_MADT_OVERRIDE_SPI_VALUES   (1)
737 
738 /* 14: Generic Redistributor (ACPI 5.1) */
739 
740 struct acpi_madt_generic_redistributor {
741 	struct acpi_subtable_header header;
742 	u16 reserved;		/* reserved - must be zero */
743 	u64 base_address;
744 	u32 length;
745 };
746 
747 /* 15: Generic Translator (ACPI 6.0) */
748 
749 struct acpi_madt_generic_translator {
750 	struct acpi_subtable_header header;
751 	u16 reserved;		/* reserved - must be zero */
752 	u32 translation_id;
753 	u64 base_address;
754 	u32 reserved2;
755 };
756 
757 /* 16: Multiprocessor wakeup (ACPI 6.4) */
758 
759 struct acpi_madt_multiproc_wakeup {
760 	struct acpi_subtable_header header;
761 	u16 mailbox_version;
762 	u32 reserved;		/* reserved - must be zero */
763 	u64 base_address;
764 };
765 
766 /*
767  * Common flags fields for MADT subtables
768  */
769 
770 /* MADT Local APIC flags */
771 
772 #define ACPI_MADT_ENABLED           (1)	/* 00: Processor is usable if set */
773 
774 /* MADT MPS INTI flags (inti_flags) */
775 
776 #define ACPI_MADT_POLARITY_MASK     (3)	/* 00-01: Polarity of APIC I/O input signals */
777 #define ACPI_MADT_TRIGGER_MASK      (3<<2)	/* 02-03: Trigger mode of APIC input signals */
778 
779 /* Values for MPS INTI flags */
780 
781 #define ACPI_MADT_POLARITY_CONFORMS       0
782 #define ACPI_MADT_POLARITY_ACTIVE_HIGH    1
783 #define ACPI_MADT_POLARITY_RESERVED       2
784 #define ACPI_MADT_POLARITY_ACTIVE_LOW     3
785 
786 #define ACPI_MADT_TRIGGER_CONFORMS        (0)
787 #define ACPI_MADT_TRIGGER_EDGE            (1<<2)
788 #define ACPI_MADT_TRIGGER_RESERVED        (2<<2)
789 #define ACPI_MADT_TRIGGER_LEVEL           (3<<2)
790 
791 /*******************************************************************************
792  *
793  * MCFG - PCI Memory Mapped Configuration table and subtable
794  *        Version 1
795  *
796  * Conforms to "PCI Firmware Specification", Revision 3.0, June 20, 2005
797  *
798  ******************************************************************************/
799 
800 struct acpi_table_mcfg {
801 	struct acpi_table_header header;	/* Common ACPI table header */
802 	u8 reserved[8];
803 };
804 
805 /* Subtable */
806 
807 struct acpi_mcfg_allocation {
808 	u64 address;		/* Base address, processor-relative */
809 	u16 pci_segment;	/* PCI segment group number */
810 	u8 start_bus_number;	/* Starting PCI Bus number */
811 	u8 end_bus_number;	/* Final PCI Bus number */
812 	u32 reserved;
813 };
814 
815 /*******************************************************************************
816  *
817  * MCHI - Management Controller Host Interface Table
818  *        Version 1
819  *
820  * Conforms to "Management Component Transport Protocol (MCTP) Host
821  * Interface Specification", Revision 1.0.0a, October 13, 2009
822  *
823  ******************************************************************************/
824 
825 struct acpi_table_mchi {
826 	struct acpi_table_header header;	/* Common ACPI table header */
827 	u8 interface_type;
828 	u8 protocol;
829 	u64 protocol_data;
830 	u8 interrupt_type;
831 	u8 gpe;
832 	u8 pci_device_flag;
833 	u32 global_interrupt;
834 	struct acpi_generic_address control_register;
835 	u8 pci_segment;
836 	u8 pci_bus;
837 	u8 pci_device;
838 	u8 pci_function;
839 };
840 
841 /*******************************************************************************
842  *
843  * MPST - Memory Power State Table (ACPI 5.0)
844  *        Version 1
845  *
846  ******************************************************************************/
847 
848 #define ACPI_MPST_CHANNEL_INFO \
849 	u8                              channel_id; \
850 	u8                              reserved1[3]; \
851 	u16                             power_node_count; \
852 	u16                             reserved2;
853 
854 /* Main table */
855 
856 struct acpi_table_mpst {
857 	struct acpi_table_header header;	/* Common ACPI table header */
858 	 ACPI_MPST_CHANNEL_INFO	/* Platform Communication Channel */
859 };
860 
861 /* Memory Platform Communication Channel Info */
862 
863 struct acpi_mpst_channel {
864 	ACPI_MPST_CHANNEL_INFO	/* Platform Communication Channel */
865 };
866 
867 /* Memory Power Node Structure */
868 
869 struct acpi_mpst_power_node {
870 	u8 flags;
871 	u8 reserved1;
872 	u16 node_id;
873 	u32 length;
874 	u64 range_address;
875 	u64 range_length;
876 	u32 num_power_states;
877 	u32 num_physical_components;
878 };
879 
880 /* Values for Flags field above */
881 
882 #define ACPI_MPST_ENABLED               1
883 #define ACPI_MPST_POWER_MANAGED         2
884 #define ACPI_MPST_HOT_PLUG_CAPABLE      4
885 
886 /* Memory Power State Structure (follows POWER_NODE above) */
887 
888 struct acpi_mpst_power_state {
889 	u8 power_state;
890 	u8 info_index;
891 };
892 
893 /* Physical Component ID Structure (follows POWER_STATE above) */
894 
895 struct acpi_mpst_component {
896 	u16 component_id;
897 };
898 
899 /* Memory Power State Characteristics Structure (follows all POWER_NODEs) */
900 
901 struct acpi_mpst_data_hdr {
902 	u16 characteristics_count;
903 	u16 reserved;
904 };
905 
906 struct acpi_mpst_power_data {
907 	u8 structure_id;
908 	u8 flags;
909 	u16 reserved1;
910 	u32 average_power;
911 	u32 power_saving;
912 	u64 exit_latency;
913 	u64 reserved2;
914 };
915 
916 /* Values for Flags field above */
917 
918 #define ACPI_MPST_PRESERVE              1
919 #define ACPI_MPST_AUTOENTRY             2
920 #define ACPI_MPST_AUTOEXIT              4
921 
922 /* Shared Memory Region (not part of an ACPI table) */
923 
924 struct acpi_mpst_shared {
925 	u32 signature;
926 	u16 pcc_command;
927 	u16 pcc_status;
928 	u32 command_register;
929 	u32 status_register;
930 	u32 power_state_id;
931 	u32 power_node_id;
932 	u64 energy_consumed;
933 	u64 average_power;
934 };
935 
936 /*******************************************************************************
937  *
938  * MSCT - Maximum System Characteristics Table (ACPI 4.0)
939  *        Version 1
940  *
941  ******************************************************************************/
942 
943 struct acpi_table_msct {
944 	struct acpi_table_header header;	/* Common ACPI table header */
945 	u32 proximity_offset;	/* Location of proximity info struct(s) */
946 	u32 max_proximity_domains;	/* Max number of proximity domains */
947 	u32 max_clock_domains;	/* Max number of clock domains */
948 	u64 max_address;	/* Max physical address in system */
949 };
950 
951 /* subtable - Maximum Proximity Domain Information. Version 1 */
952 
953 struct acpi_msct_proximity {
954 	u8 revision;
955 	u8 length;
956 	u32 range_start;	/* Start of domain range */
957 	u32 range_end;		/* End of domain range */
958 	u32 processor_capacity;
959 	u64 memory_capacity;	/* In bytes */
960 };
961 
962 /*******************************************************************************
963  *
964  * MSDM - Microsoft Data Management table
965  *
966  * Conforms to "Microsoft Software Licensing Tables (SLIC and MSDM)",
967  * November 29, 2011. Copyright 2011 Microsoft
968  *
969  ******************************************************************************/
970 
971 /* Basic MSDM table is only the common ACPI header */
972 
973 struct acpi_table_msdm {
974 	struct acpi_table_header header;	/* Common ACPI table header */
975 };
976 
977 /*******************************************************************************
978  *
979  * NFIT - NVDIMM Interface Table (ACPI 6.0+)
980  *        Version 1
981  *
982  ******************************************************************************/
983 
984 struct acpi_table_nfit {
985 	struct acpi_table_header header;	/* Common ACPI table header */
986 	u32 reserved;		/* Reserved, must be zero */
987 };
988 
989 /* Subtable header for NFIT */
990 
991 struct acpi_nfit_header {
992 	u16 type;
993 	u16 length;
994 };
995 
996 /* Values for subtable type in struct acpi_nfit_header */
997 
998 enum acpi_nfit_type {
999 	ACPI_NFIT_TYPE_SYSTEM_ADDRESS = 0,
1000 	ACPI_NFIT_TYPE_MEMORY_MAP = 1,
1001 	ACPI_NFIT_TYPE_INTERLEAVE = 2,
1002 	ACPI_NFIT_TYPE_SMBIOS = 3,
1003 	ACPI_NFIT_TYPE_CONTROL_REGION = 4,
1004 	ACPI_NFIT_TYPE_DATA_REGION = 5,
1005 	ACPI_NFIT_TYPE_FLUSH_ADDRESS = 6,
1006 	ACPI_NFIT_TYPE_CAPABILITIES = 7,
1007 	ACPI_NFIT_TYPE_RESERVED = 8	/* 8 and greater are reserved */
1008 };
1009 
1010 /*
1011  * NFIT Subtables
1012  */
1013 
1014 /* 0: System Physical Address Range Structure */
1015 
1016 struct acpi_nfit_system_address {
1017 	struct acpi_nfit_header header;
1018 	u16 range_index;
1019 	u16 flags;
1020 	u32 reserved;		/* Reserved, must be zero */
1021 	u32 proximity_domain;
1022 	u8 range_guid[16];
1023 	u64 address;
1024 	u64 length;
1025 	u64 memory_mapping;
1026 	u64 location_cookie;	/* ACPI 6.4 */
1027 };
1028 
1029 /* Flags */
1030 
1031 #define ACPI_NFIT_ADD_ONLINE_ONLY       (1)	/* 00: Add/Online Operation Only */
1032 #define ACPI_NFIT_PROXIMITY_VALID       (1<<1)	/* 01: Proximity Domain Valid */
1033 #define ACPI_NFIT_LOCATION_COOKIE_VALID (1<<2)	/* 02: SPA location cookie valid (ACPI 6.4) */
1034 
1035 /* Range Type GUIDs appear in the include/acuuid.h file */
1036 
1037 /* 1: Memory Device to System Address Range Map Structure */
1038 
1039 struct acpi_nfit_memory_map {
1040 	struct acpi_nfit_header header;
1041 	u32 device_handle;
1042 	u16 physical_id;
1043 	u16 region_id;
1044 	u16 range_index;
1045 	u16 region_index;
1046 	u64 region_size;
1047 	u64 region_offset;
1048 	u64 address;
1049 	u16 interleave_index;
1050 	u16 interleave_ways;
1051 	u16 flags;
1052 	u16 reserved;		/* Reserved, must be zero */
1053 };
1054 
1055 /* Flags */
1056 
1057 #define ACPI_NFIT_MEM_SAVE_FAILED       (1)	/* 00: Last SAVE to Memory Device failed */
1058 #define ACPI_NFIT_MEM_RESTORE_FAILED    (1<<1)	/* 01: Last RESTORE from Memory Device failed */
1059 #define ACPI_NFIT_MEM_FLUSH_FAILED      (1<<2)	/* 02: Platform flush failed */
1060 #define ACPI_NFIT_MEM_NOT_ARMED         (1<<3)	/* 03: Memory Device is not armed */
1061 #define ACPI_NFIT_MEM_HEALTH_OBSERVED   (1<<4)	/* 04: Memory Device observed SMART/health events */
1062 #define ACPI_NFIT_MEM_HEALTH_ENABLED    (1<<5)	/* 05: SMART/health events enabled */
1063 #define ACPI_NFIT_MEM_MAP_FAILED        (1<<6)	/* 06: Mapping to SPA failed */
1064 
1065 /* 2: Interleave Structure */
1066 
1067 struct acpi_nfit_interleave {
1068 	struct acpi_nfit_header header;
1069 	u16 interleave_index;
1070 	u16 reserved;		/* Reserved, must be zero */
1071 	u32 line_count;
1072 	u32 line_size;
1073 	u32 line_offset[1];	/* Variable length */
1074 };
1075 
1076 /* 3: SMBIOS Management Information Structure */
1077 
1078 struct acpi_nfit_smbios {
1079 	struct acpi_nfit_header header;
1080 	u32 reserved;		/* Reserved, must be zero */
1081 	u8 data[1];		/* Variable length */
1082 };
1083 
1084 /* 4: NVDIMM Control Region Structure */
1085 
1086 struct acpi_nfit_control_region {
1087 	struct acpi_nfit_header header;
1088 	u16 region_index;
1089 	u16 vendor_id;
1090 	u16 device_id;
1091 	u16 revision_id;
1092 	u16 subsystem_vendor_id;
1093 	u16 subsystem_device_id;
1094 	u16 subsystem_revision_id;
1095 	u8 valid_fields;
1096 	u8 manufacturing_location;
1097 	u16 manufacturing_date;
1098 	u8 reserved[2];		/* Reserved, must be zero */
1099 	u32 serial_number;
1100 	u16 code;
1101 	u16 windows;
1102 	u64 window_size;
1103 	u64 command_offset;
1104 	u64 command_size;
1105 	u64 status_offset;
1106 	u64 status_size;
1107 	u16 flags;
1108 	u8 reserved1[6];	/* Reserved, must be zero */
1109 };
1110 
1111 /* Flags */
1112 
1113 #define ACPI_NFIT_CONTROL_BUFFERED          (1)	/* Block Data Windows implementation is buffered */
1114 
1115 /* valid_fields bits */
1116 
1117 #define ACPI_NFIT_CONTROL_MFG_INFO_VALID    (1)	/* Manufacturing fields are valid */
1118 
1119 /* 5: NVDIMM Block Data Window Region Structure */
1120 
1121 struct acpi_nfit_data_region {
1122 	struct acpi_nfit_header header;
1123 	u16 region_index;
1124 	u16 windows;
1125 	u64 offset;
1126 	u64 size;
1127 	u64 capacity;
1128 	u64 start_address;
1129 };
1130 
1131 /* 6: Flush Hint Address Structure */
1132 
1133 struct acpi_nfit_flush_address {
1134 	struct acpi_nfit_header header;
1135 	u32 device_handle;
1136 	u16 hint_count;
1137 	u8 reserved[6];		/* Reserved, must be zero */
1138 	u64 hint_address[1];	/* Variable length */
1139 };
1140 
1141 /* 7: Platform Capabilities Structure */
1142 
1143 struct acpi_nfit_capabilities {
1144 	struct acpi_nfit_header header;
1145 	u8 highest_capability;
1146 	u8 reserved[3];		/* Reserved, must be zero */
1147 	u32 capabilities;
1148 	u32 reserved2;
1149 };
1150 
1151 /* Capabilities Flags */
1152 
1153 #define ACPI_NFIT_CAPABILITY_CACHE_FLUSH       (1)	/* 00: Cache Flush to NVDIMM capable */
1154 #define ACPI_NFIT_CAPABILITY_MEM_FLUSH         (1<<1)	/* 01: Memory Flush to NVDIMM capable */
1155 #define ACPI_NFIT_CAPABILITY_MEM_MIRRORING     (1<<2)	/* 02: Memory Mirroring capable */
1156 
1157 /*
1158  * NFIT/DVDIMM device handle support - used as the _ADR for each NVDIMM
1159  */
1160 struct nfit_device_handle {
1161 	u32 handle;
1162 };
1163 
1164 /* Device handle construction and extraction macros */
1165 
1166 #define ACPI_NFIT_DIMM_NUMBER_MASK              0x0000000F
1167 #define ACPI_NFIT_CHANNEL_NUMBER_MASK           0x000000F0
1168 #define ACPI_NFIT_MEMORY_ID_MASK                0x00000F00
1169 #define ACPI_NFIT_SOCKET_ID_MASK                0x0000F000
1170 #define ACPI_NFIT_NODE_ID_MASK                  0x0FFF0000
1171 
1172 #define ACPI_NFIT_DIMM_NUMBER_OFFSET            0
1173 #define ACPI_NFIT_CHANNEL_NUMBER_OFFSET         4
1174 #define ACPI_NFIT_MEMORY_ID_OFFSET              8
1175 #define ACPI_NFIT_SOCKET_ID_OFFSET              12
1176 #define ACPI_NFIT_NODE_ID_OFFSET                16
1177 
1178 /* Macro to construct a NFIT/NVDIMM device handle */
1179 
1180 #define ACPI_NFIT_BUILD_DEVICE_HANDLE(dimm, channel, memory, socket, node) \
1181 	((dimm)                                         | \
1182 	((channel) << ACPI_NFIT_CHANNEL_NUMBER_OFFSET)  | \
1183 	((memory)  << ACPI_NFIT_MEMORY_ID_OFFSET)       | \
1184 	((socket)  << ACPI_NFIT_SOCKET_ID_OFFSET)       | \
1185 	((node)    << ACPI_NFIT_NODE_ID_OFFSET))
1186 
1187 /* Macros to extract individual fields from a NFIT/NVDIMM device handle */
1188 
1189 #define ACPI_NFIT_GET_DIMM_NUMBER(handle) \
1190 	((handle) & ACPI_NFIT_DIMM_NUMBER_MASK)
1191 
1192 #define ACPI_NFIT_GET_CHANNEL_NUMBER(handle) \
1193 	(((handle) & ACPI_NFIT_CHANNEL_NUMBER_MASK) >> ACPI_NFIT_CHANNEL_NUMBER_OFFSET)
1194 
1195 #define ACPI_NFIT_GET_MEMORY_ID(handle) \
1196 	(((handle) & ACPI_NFIT_MEMORY_ID_MASK)      >> ACPI_NFIT_MEMORY_ID_OFFSET)
1197 
1198 #define ACPI_NFIT_GET_SOCKET_ID(handle) \
1199 	(((handle) & ACPI_NFIT_SOCKET_ID_MASK)      >> ACPI_NFIT_SOCKET_ID_OFFSET)
1200 
1201 #define ACPI_NFIT_GET_NODE_ID(handle) \
1202 	(((handle) & ACPI_NFIT_NODE_ID_MASK)        >> ACPI_NFIT_NODE_ID_OFFSET)
1203 
1204 /*******************************************************************************
1205  *
1206  * PCCT - Platform Communications Channel Table (ACPI 5.0)
1207  *        Version 2 (ACPI 6.2)
1208  *
1209  ******************************************************************************/
1210 
1211 struct acpi_table_pcct {
1212 	struct acpi_table_header header;	/* Common ACPI table header */
1213 	u32 flags;
1214 	u64 reserved;
1215 };
1216 
1217 /* Values for Flags field above */
1218 
1219 #define ACPI_PCCT_DOORBELL              1
1220 
1221 /* Values for subtable type in struct acpi_subtable_header */
1222 
1223 enum acpi_pcct_type {
1224 	ACPI_PCCT_TYPE_GENERIC_SUBSPACE = 0,
1225 	ACPI_PCCT_TYPE_HW_REDUCED_SUBSPACE = 1,
1226 	ACPI_PCCT_TYPE_HW_REDUCED_SUBSPACE_TYPE2 = 2,	/* ACPI 6.1 */
1227 	ACPI_PCCT_TYPE_EXT_PCC_MASTER_SUBSPACE = 3,	/* ACPI 6.2 */
1228 	ACPI_PCCT_TYPE_EXT_PCC_SLAVE_SUBSPACE = 4,	/* ACPI 6.2 */
1229 	ACPI_PCCT_TYPE_HW_REG_COMM_SUBSPACE = 5,	/* ACPI 6.4 */
1230 	ACPI_PCCT_TYPE_RESERVED = 6	/* 6 and greater are reserved */
1231 };
1232 
1233 /*
1234  * PCCT Subtables, correspond to Type in struct acpi_subtable_header
1235  */
1236 
1237 /* 0: Generic Communications Subspace */
1238 
1239 struct acpi_pcct_subspace {
1240 	struct acpi_subtable_header header;
1241 	u8 reserved[6];
1242 	u64 base_address;
1243 	u64 length;
1244 	struct acpi_generic_address doorbell_register;
1245 	u64 preserve_mask;
1246 	u64 write_mask;
1247 	u32 latency;
1248 	u32 max_access_rate;
1249 	u16 min_turnaround_time;
1250 };
1251 
1252 /* 1: HW-reduced Communications Subspace (ACPI 5.1) */
1253 
1254 struct acpi_pcct_hw_reduced {
1255 	struct acpi_subtable_header header;
1256 	u32 platform_interrupt;
1257 	u8 flags;
1258 	u8 reserved;
1259 	u64 base_address;
1260 	u64 length;
1261 	struct acpi_generic_address doorbell_register;
1262 	u64 preserve_mask;
1263 	u64 write_mask;
1264 	u32 latency;
1265 	u32 max_access_rate;
1266 	u16 min_turnaround_time;
1267 };
1268 
1269 /* 2: HW-reduced Communications Subspace Type 2 (ACPI 6.1) */
1270 
1271 struct acpi_pcct_hw_reduced_type2 {
1272 	struct acpi_subtable_header header;
1273 	u32 platform_interrupt;
1274 	u8 flags;
1275 	u8 reserved;
1276 	u64 base_address;
1277 	u64 length;
1278 	struct acpi_generic_address doorbell_register;
1279 	u64 preserve_mask;
1280 	u64 write_mask;
1281 	u32 latency;
1282 	u32 max_access_rate;
1283 	u16 min_turnaround_time;
1284 	struct acpi_generic_address platform_ack_register;
1285 	u64 ack_preserve_mask;
1286 	u64 ack_write_mask;
1287 };
1288 
1289 /* 3: Extended PCC Master Subspace Type 3 (ACPI 6.2) */
1290 
1291 struct acpi_pcct_ext_pcc_master {
1292 	struct acpi_subtable_header header;
1293 	u32 platform_interrupt;
1294 	u8 flags;
1295 	u8 reserved1;
1296 	u64 base_address;
1297 	u32 length;
1298 	struct acpi_generic_address doorbell_register;
1299 	u64 preserve_mask;
1300 	u64 write_mask;
1301 	u32 latency;
1302 	u32 max_access_rate;
1303 	u32 min_turnaround_time;
1304 	struct acpi_generic_address platform_ack_register;
1305 	u64 ack_preserve_mask;
1306 	u64 ack_set_mask;
1307 	u64 reserved2;
1308 	struct acpi_generic_address cmd_complete_register;
1309 	u64 cmd_complete_mask;
1310 	struct acpi_generic_address cmd_update_register;
1311 	u64 cmd_update_preserve_mask;
1312 	u64 cmd_update_set_mask;
1313 	struct acpi_generic_address error_status_register;
1314 	u64 error_status_mask;
1315 };
1316 
1317 /* 4: Extended PCC Slave Subspace Type 4 (ACPI 6.2) */
1318 
1319 struct acpi_pcct_ext_pcc_slave {
1320 	struct acpi_subtable_header header;
1321 	u32 platform_interrupt;
1322 	u8 flags;
1323 	u8 reserved1;
1324 	u64 base_address;
1325 	u32 length;
1326 	struct acpi_generic_address doorbell_register;
1327 	u64 preserve_mask;
1328 	u64 write_mask;
1329 	u32 latency;
1330 	u32 max_access_rate;
1331 	u32 min_turnaround_time;
1332 	struct acpi_generic_address platform_ack_register;
1333 	u64 ack_preserve_mask;
1334 	u64 ack_set_mask;
1335 	u64 reserved2;
1336 	struct acpi_generic_address cmd_complete_register;
1337 	u64 cmd_complete_mask;
1338 	struct acpi_generic_address cmd_update_register;
1339 	u64 cmd_update_preserve_mask;
1340 	u64 cmd_update_set_mask;
1341 	struct acpi_generic_address error_status_register;
1342 	u64 error_status_mask;
1343 };
1344 
1345 /* 5: HW Registers based Communications Subspace */
1346 
1347 struct acpi_pcct_hw_reg {
1348 	struct acpi_subtable_header header;
1349 	u16 version;
1350 	u64 base_address;
1351 	u64 length;
1352 	struct acpi_generic_address doorbell_register;
1353 	u64 doorbell_preserve;
1354 	u64 doorbell_write;
1355 	struct acpi_generic_address cmd_complete_register;
1356 	u64 cmd_complete_mask;
1357 	struct acpi_generic_address error_status_register;
1358 	u64 error_status_mask;
1359 	u32 nominal_latency;
1360 	u32 min_turnaround_time;
1361 };
1362 
1363 /* Values for doorbell flags above */
1364 
1365 #define ACPI_PCCT_INTERRUPT_POLARITY    (1)
1366 #define ACPI_PCCT_INTERRUPT_MODE        (1<<1)
1367 
1368 /*
1369  * PCC memory structures (not part of the ACPI table)
1370  */
1371 
1372 /* Shared Memory Region */
1373 
1374 struct acpi_pcct_shared_memory {
1375 	u32 signature;
1376 	u16 command;
1377 	u16 status;
1378 };
1379 
1380 /* Extended PCC Subspace Shared Memory Region (ACPI 6.2) */
1381 
1382 struct acpi_pcct_ext_pcc_shared_memory {
1383 	u32 signature;
1384 	u32 flags;
1385 	u32 length;
1386 	u32 command;
1387 };
1388 
1389 /*******************************************************************************
1390  *
1391  * PDTT - Platform Debug Trigger Table (ACPI 6.2)
1392  *        Version 0
1393  *
1394  ******************************************************************************/
1395 
1396 struct acpi_table_pdtt {
1397 	struct acpi_table_header header;	/* Common ACPI table header */
1398 	u8 trigger_count;
1399 	u8 reserved[3];
1400 	u32 array_offset;
1401 };
1402 
1403 /*
1404  * PDTT Communication Channel Identifier Structure.
1405  * The number of these structures is defined by trigger_count above,
1406  * starting at array_offset.
1407  */
1408 struct acpi_pdtt_channel {
1409 	u8 subchannel_id;
1410 	u8 flags;
1411 };
1412 
1413 /* Flags for above */
1414 
1415 #define ACPI_PDTT_RUNTIME_TRIGGER           (1)
1416 #define ACPI_PDTT_WAIT_COMPLETION           (1<<1)
1417 #define ACPI_PDTT_TRIGGER_ORDER             (1<<2)
1418 
1419 /*******************************************************************************
1420  *
1421  * PHAT - Platform Health Assessment Table (ACPI 6.4)
1422  *        Version 1
1423  *
1424  ******************************************************************************/
1425 
1426 struct acpi_table_phat {
1427 	struct acpi_table_header header;	/* Common ACPI table header */
1428 };
1429 
1430 /* Common header for PHAT subtables that follow main table */
1431 
1432 struct acpi_phat_header {
1433 	u16 type;
1434 	u16 length;
1435 	u8 revision;
1436 };
1437 
1438 /* Values for Type field above */
1439 
1440 #define ACPI_PHAT_TYPE_FW_VERSION_DATA  0
1441 #define ACPI_PHAT_TYPE_FW_HEALTH_DATA   1
1442 #define ACPI_PHAT_TYPE_RESERVED         2	/* 0x02-0xFFFF are reserved */
1443 
1444 /*
1445  * PHAT subtables, correspond to Type in struct acpi_phat_header
1446  */
1447 
1448 /* 0: Firmware Version Data Record */
1449 
1450 struct acpi_phat_version_data {
1451 	struct acpi_phat_header header;
1452 	u8 reserved[3];
1453 	u32 element_count;
1454 };
1455 
1456 struct acpi_phat_version_element {
1457 	u8 guid[16];
1458 	u64 version_value;
1459 	u32 producer_id;
1460 };
1461 
1462 /* 1: Firmware Health Data Record */
1463 
1464 struct acpi_phat_health_data {
1465 	struct acpi_phat_header header;
1466 	u8 reserved[2];
1467 	u8 health;
1468 	u8 device_guid[16];
1469 	u32 device_specific_offset;	/* Zero if no Device-specific data */
1470 };
1471 
1472 /* Values for Health field above */
1473 
1474 #define ACPI_PHAT_ERRORS_FOUND          0
1475 #define ACPI_PHAT_NO_ERRORS             1
1476 #define ACPI_PHAT_UNKNOWN_ERRORS        2
1477 #define ACPI_PHAT_ADVISORY              3
1478 
1479 /*******************************************************************************
1480  *
1481  * PMTT - Platform Memory Topology Table (ACPI 5.0)
1482  *        Version 1
1483  *
1484  ******************************************************************************/
1485 
1486 struct acpi_table_pmtt {
1487 	struct acpi_table_header header;	/* Common ACPI table header */
1488 	u32 memory_device_count;
1489 	/*
1490 	 * Immediately followed by:
1491 	 * MEMORY_DEVICE memory_device_struct[memory_device_count];
1492 	 */
1493 };
1494 
1495 /* Common header for PMTT subtables that follow main table */
1496 
1497 struct acpi_pmtt_header {
1498 	u8 type;
1499 	u8 reserved1;
1500 	u16 length;
1501 	u16 flags;
1502 	u16 reserved2;
1503 	u32 memory_device_count;	/* Zero means no memory device structs follow */
1504 	/*
1505 	 * Immediately followed by:
1506 	 * u8 type_specific_data[]
1507 	 * MEMORY_DEVICE memory_device_struct[memory_device_count];
1508 	 */
1509 };
1510 
1511 /* Values for Type field above */
1512 
1513 #define ACPI_PMTT_TYPE_SOCKET           0
1514 #define ACPI_PMTT_TYPE_CONTROLLER       1
1515 #define ACPI_PMTT_TYPE_DIMM             2
1516 #define ACPI_PMTT_TYPE_RESERVED         3	/* 0x03-0xFE are reserved */
1517 #define ACPI_PMTT_TYPE_VENDOR           0xFF
1518 
1519 /* Values for Flags field above */
1520 
1521 #define ACPI_PMTT_TOP_LEVEL             0x0001
1522 #define ACPI_PMTT_PHYSICAL              0x0002
1523 #define ACPI_PMTT_MEMORY_TYPE           0x000C
1524 
1525 /*
1526  * PMTT subtables, correspond to Type in struct acpi_pmtt_header
1527  */
1528 
1529 /* 0: Socket Structure */
1530 
1531 struct acpi_pmtt_socket {
1532 	struct acpi_pmtt_header header;
1533 	u16 socket_id;
1534 	u16 reserved;
1535 };
1536 	/*
1537 	 * Immediately followed by:
1538 	 * MEMORY_DEVICE memory_device_struct[memory_device_count];
1539 	 */
1540 
1541 /* 1: Memory Controller subtable */
1542 
1543 struct acpi_pmtt_controller {
1544 	struct acpi_pmtt_header header;
1545 	u16 controller_id;
1546 	u16 reserved;
1547 };
1548 	/*
1549 	 * Immediately followed by:
1550 	 * MEMORY_DEVICE memory_device_struct[memory_device_count];
1551 	 */
1552 
1553 /* 2: Physical Component Identifier (DIMM) */
1554 
1555 struct acpi_pmtt_physical_component {
1556 	struct acpi_pmtt_header header;
1557 	u32 bios_handle;
1558 };
1559 
1560 /* 0xFF: Vendor Specific Data */
1561 
1562 struct acpi_pmtt_vendor_specific {
1563 	struct acpi_pmtt_header header;
1564 	u8 type_uuid[16];
1565 	u8 specific[];
1566 	/*
1567 	 * Immediately followed by:
1568 	 * u8 vendor_specific_data[];
1569 	 * MEMORY_DEVICE memory_device_struct[memory_device_count];
1570 	 */
1571 };
1572 
1573 /*******************************************************************************
1574  *
1575  * PPTT - Processor Properties Topology Table (ACPI 6.2)
1576  *        Version 1
1577  *
1578  ******************************************************************************/
1579 
1580 struct acpi_table_pptt {
1581 	struct acpi_table_header header;	/* Common ACPI table header */
1582 };
1583 
1584 /* Values for Type field above */
1585 
1586 enum acpi_pptt_type {
1587 	ACPI_PPTT_TYPE_PROCESSOR = 0,
1588 	ACPI_PPTT_TYPE_CACHE = 1,
1589 	ACPI_PPTT_TYPE_ID = 2,
1590 	ACPI_PPTT_TYPE_RESERVED = 3
1591 };
1592 
1593 /* 0: Processor Hierarchy Node Structure */
1594 
1595 struct acpi_pptt_processor {
1596 	struct acpi_subtable_header header;
1597 	u16 reserved;
1598 	u32 flags;
1599 	u32 parent;
1600 	u32 acpi_processor_id;
1601 	u32 number_of_priv_resources;
1602 };
1603 
1604 /* Flags */
1605 
1606 #define ACPI_PPTT_PHYSICAL_PACKAGE          (1)
1607 #define ACPI_PPTT_ACPI_PROCESSOR_ID_VALID   (1<<1)
1608 #define ACPI_PPTT_ACPI_PROCESSOR_IS_THREAD  (1<<2)	/* ACPI 6.3 */
1609 #define ACPI_PPTT_ACPI_LEAF_NODE            (1<<3)	/* ACPI 6.3 */
1610 #define ACPI_PPTT_ACPI_IDENTICAL            (1<<4)	/* ACPI 6.3 */
1611 
1612 /* 1: Cache Type Structure */
1613 
1614 struct acpi_pptt_cache {
1615 	struct acpi_subtable_header header;
1616 	u16 reserved;
1617 	u32 flags;
1618 	u32 next_level_of_cache;
1619 	u32 size;
1620 	u32 number_of_sets;
1621 	u8 associativity;
1622 	u8 attributes;
1623 	u16 line_size;
1624 };
1625 
1626 /* 1: Cache Type Structure for PPTT version 3 */
1627 
1628 struct acpi_pptt_cache_v1 {
1629 	u32 cache_id;
1630 };
1631 
1632 /* Flags */
1633 
1634 #define ACPI_PPTT_SIZE_PROPERTY_VALID       (1)	/* Physical property valid */
1635 #define ACPI_PPTT_NUMBER_OF_SETS_VALID      (1<<1)	/* Number of sets valid */
1636 #define ACPI_PPTT_ASSOCIATIVITY_VALID       (1<<2)	/* Associativity valid */
1637 #define ACPI_PPTT_ALLOCATION_TYPE_VALID     (1<<3)	/* Allocation type valid */
1638 #define ACPI_PPTT_CACHE_TYPE_VALID          (1<<4)	/* Cache type valid */
1639 #define ACPI_PPTT_WRITE_POLICY_VALID        (1<<5)	/* Write policy valid */
1640 #define ACPI_PPTT_LINE_SIZE_VALID           (1<<6)	/* Line size valid */
1641 #define ACPI_PPTT_CACHE_ID_VALID            (1<<7)	/* Cache ID valid */
1642 
1643 /* Masks for Attributes */
1644 
1645 #define ACPI_PPTT_MASK_ALLOCATION_TYPE      (0x03)	/* Allocation type */
1646 #define ACPI_PPTT_MASK_CACHE_TYPE           (0x0C)	/* Cache type */
1647 #define ACPI_PPTT_MASK_WRITE_POLICY         (0x10)	/* Write policy */
1648 
1649 /* Attributes describing cache */
1650 #define ACPI_PPTT_CACHE_READ_ALLOCATE       (0x0)	/* Cache line is allocated on read */
1651 #define ACPI_PPTT_CACHE_WRITE_ALLOCATE      (0x01)	/* Cache line is allocated on write */
1652 #define ACPI_PPTT_CACHE_RW_ALLOCATE         (0x02)	/* Cache line is allocated on read and write */
1653 #define ACPI_PPTT_CACHE_RW_ALLOCATE_ALT     (0x03)	/* Alternate representation of above */
1654 
1655 #define ACPI_PPTT_CACHE_TYPE_DATA           (0x0)	/* Data cache */
1656 #define ACPI_PPTT_CACHE_TYPE_INSTR          (1<<2)	/* Instruction cache */
1657 #define ACPI_PPTT_CACHE_TYPE_UNIFIED        (2<<2)	/* Unified I & D cache */
1658 #define ACPI_PPTT_CACHE_TYPE_UNIFIED_ALT    (3<<2)	/* Alternate representation of above */
1659 
1660 #define ACPI_PPTT_CACHE_POLICY_WB           (0x0)	/* Cache is write back */
1661 #define ACPI_PPTT_CACHE_POLICY_WT           (1<<4)	/* Cache is write through */
1662 
1663 /* 2: ID Structure */
1664 
1665 struct acpi_pptt_id {
1666 	struct acpi_subtable_header header;
1667 	u16 reserved;
1668 	u32 vendor_id;
1669 	u64 level1_id;
1670 	u64 level2_id;
1671 	u16 major_rev;
1672 	u16 minor_rev;
1673 	u16 spin_rev;
1674 };
1675 
1676 /*******************************************************************************
1677  *
1678  * RASF - RAS Feature Table (ACPI 5.0)
1679  *        Version 1
1680  *
1681  ******************************************************************************/
1682 
1683 struct acpi_table_rasf {
1684 	struct acpi_table_header header;	/* Common ACPI table header */
1685 	u8 channel_id[12];
1686 };
1687 
1688 /* RASF Platform Communication Channel Shared Memory Region */
1689 
1690 struct acpi_rasf_shared_memory {
1691 	u32 signature;
1692 	u16 command;
1693 	u16 status;
1694 	u16 version;
1695 	u8 capabilities[16];
1696 	u8 set_capabilities[16];
1697 	u16 num_parameter_blocks;
1698 	u32 set_capabilities_status;
1699 };
1700 
1701 /* RASF Parameter Block Structure Header */
1702 
1703 struct acpi_rasf_parameter_block {
1704 	u16 type;
1705 	u16 version;
1706 	u16 length;
1707 };
1708 
1709 /* RASF Parameter Block Structure for PATROL_SCRUB */
1710 
1711 struct acpi_rasf_patrol_scrub_parameter {
1712 	struct acpi_rasf_parameter_block header;
1713 	u16 patrol_scrub_command;
1714 	u64 requested_address_range[2];
1715 	u64 actual_address_range[2];
1716 	u16 flags;
1717 	u8 requested_speed;
1718 };
1719 
1720 /* Masks for Flags and Speed fields above */
1721 
1722 #define ACPI_RASF_SCRUBBER_RUNNING      1
1723 #define ACPI_RASF_SPEED                 (7<<1)
1724 #define ACPI_RASF_SPEED_SLOW            (0<<1)
1725 #define ACPI_RASF_SPEED_MEDIUM          (4<<1)
1726 #define ACPI_RASF_SPEED_FAST            (7<<1)
1727 
1728 /* Channel Commands */
1729 
1730 enum acpi_rasf_commands {
1731 	ACPI_RASF_EXECUTE_RASF_COMMAND = 1
1732 };
1733 
1734 /* Platform RAS Capabilities */
1735 
1736 enum acpi_rasf_capabiliities {
1737 	ACPI_HW_PATROL_SCRUB_SUPPORTED = 0,
1738 	ACPI_SW_PATROL_SCRUB_EXPOSED = 1
1739 };
1740 
1741 /* Patrol Scrub Commands */
1742 
1743 enum acpi_rasf_patrol_scrub_commands {
1744 	ACPI_RASF_GET_PATROL_PARAMETERS = 1,
1745 	ACPI_RASF_START_PATROL_SCRUBBER = 2,
1746 	ACPI_RASF_STOP_PATROL_SCRUBBER = 3
1747 };
1748 
1749 /* Channel Command flags */
1750 
1751 #define ACPI_RASF_GENERATE_SCI          (1<<15)
1752 
1753 /* Status values */
1754 
1755 enum acpi_rasf_status {
1756 	ACPI_RASF_SUCCESS = 0,
1757 	ACPI_RASF_NOT_VALID = 1,
1758 	ACPI_RASF_NOT_SUPPORTED = 2,
1759 	ACPI_RASF_BUSY = 3,
1760 	ACPI_RASF_FAILED = 4,
1761 	ACPI_RASF_ABORTED = 5,
1762 	ACPI_RASF_INVALID_DATA = 6
1763 };
1764 
1765 /* Status flags */
1766 
1767 #define ACPI_RASF_COMMAND_COMPLETE      (1)
1768 #define ACPI_RASF_SCI_DOORBELL          (1<<1)
1769 #define ACPI_RASF_ERROR                 (1<<2)
1770 #define ACPI_RASF_STATUS                (0x1F<<3)
1771 
1772 /*******************************************************************************
1773  *
1774  * SBST - Smart Battery Specification Table
1775  *        Version 1
1776  *
1777  ******************************************************************************/
1778 
1779 struct acpi_table_sbst {
1780 	struct acpi_table_header header;	/* Common ACPI table header */
1781 	u32 warning_level;
1782 	u32 low_level;
1783 	u32 critical_level;
1784 };
1785 
1786 /*******************************************************************************
1787  *
1788  * SDEI - Software Delegated Exception Interface Descriptor Table
1789  *
1790  * Conforms to "Software Delegated Exception Interface (SDEI)" ARM DEN0054A,
1791  * May 8th, 2017. Copyright 2017 ARM Ltd.
1792  *
1793  ******************************************************************************/
1794 
1795 struct acpi_table_sdei {
1796 	struct acpi_table_header header;	/* Common ACPI table header */
1797 };
1798 
1799 /*******************************************************************************
1800  *
1801  * SDEV - Secure Devices Table (ACPI 6.2)
1802  *        Version 1
1803  *
1804  ******************************************************************************/
1805 
1806 struct acpi_table_sdev {
1807 	struct acpi_table_header header;	/* Common ACPI table header */
1808 };
1809 
1810 struct acpi_sdev_header {
1811 	u8 type;
1812 	u8 flags;
1813 	u16 length;
1814 };
1815 
1816 /* Values for subtable type above */
1817 
1818 enum acpi_sdev_type {
1819 	ACPI_SDEV_TYPE_NAMESPACE_DEVICE = 0,
1820 	ACPI_SDEV_TYPE_PCIE_ENDPOINT_DEVICE = 1,
1821 	ACPI_SDEV_TYPE_RESERVED = 2	/* 2 and greater are reserved */
1822 };
1823 
1824 /* Values for flags above */
1825 
1826 #define ACPI_SDEV_HANDOFF_TO_UNSECURE_OS    (1)
1827 #define ACPI_SDEV_SECURE_COMPONENTS_PRESENT (1<<1)
1828 
1829 /*
1830  * SDEV subtables
1831  */
1832 
1833 /* 0: Namespace Device Based Secure Device Structure */
1834 
1835 struct acpi_sdev_namespace {
1836 	struct acpi_sdev_header header;
1837 	u16 device_id_offset;
1838 	u16 device_id_length;
1839 	u16 vendor_data_offset;
1840 	u16 vendor_data_length;
1841 };
1842 
1843 struct acpi_sdev_secure_component {
1844 	u16 secure_component_offset;
1845 	u16 secure_component_length;
1846 };
1847 
1848 /*
1849  * SDEV sub-subtables ("Components") for above
1850  */
1851 struct acpi_sdev_component {
1852 	struct acpi_sdev_header header;
1853 };
1854 
1855 /* Values for sub-subtable type above */
1856 
1857 enum acpi_sac_type {
1858 	ACPI_SDEV_TYPE_ID_COMPONENT = 0,
1859 	ACPI_SDEV_TYPE_MEM_COMPONENT = 1
1860 };
1861 
1862 struct acpi_sdev_id_component {
1863 	struct acpi_sdev_header header;
1864 	u16 hardware_id_offset;
1865 	u16 hardware_id_length;
1866 	u16 subsystem_id_offset;
1867 	u16 subsystem_id_length;
1868 	u16 hardware_revision;
1869 	u8 hardware_rev_present;
1870 	u8 class_code_present;
1871 	u8 pci_base_class;
1872 	u8 pci_sub_class;
1873 	u8 pci_programming_xface;
1874 };
1875 
1876 struct acpi_sdev_mem_component {
1877 	struct acpi_sdev_header header;
1878 	u32 reserved;
1879 	u64 memory_base_address;
1880 	u64 memory_length;
1881 };
1882 
1883 /* 1: PCIe Endpoint Device Based Device Structure */
1884 
1885 struct acpi_sdev_pcie {
1886 	struct acpi_sdev_header header;
1887 	u16 segment;
1888 	u16 start_bus;
1889 	u16 path_offset;
1890 	u16 path_length;
1891 	u16 vendor_data_offset;
1892 	u16 vendor_data_length;
1893 };
1894 
1895 /* 1a: PCIe Endpoint path entry */
1896 
1897 struct acpi_sdev_pcie_path {
1898 	u8 device;
1899 	u8 function;
1900 };
1901 
1902 /* Reset to default packing */
1903 
1904 #pragma pack()
1905 
1906 #endif				/* __ACTBL2_H__ */
1907