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-rw-r--r--drivers/acpi/acpica/aclocal.h22
-rw-r--r--drivers/acpi/acpica/acmacros.h29
-rw-r--r--drivers/acpi/acpica/utxface.c87
-rw-r--r--include/acpi/acbuffer.h192
-rw-r--r--include/acpi/acnames.h1
-rw-r--r--include/acpi/acpixf.h5
-rw-r--r--include/acpi/actbl.h12
-rw-r--r--include/acpi/actbl1.h12
-rw-r--r--include/acpi/actbl2.h12
-rw-r--r--include/acpi/actbl3.h12
10 files changed, 360 insertions, 24 deletions
diff --git a/drivers/acpi/acpica/aclocal.h b/drivers/acpi/acpica/aclocal.h
index 493529a3500a..c816ee675094 100644
--- a/drivers/acpi/acpica/aclocal.h
+++ b/drivers/acpi/acpica/aclocal.h
@@ -707,15 +707,18 @@ union acpi_parse_value {
707 u8 disasm_opcode; /* Subtype used for disassembly */\ 707 u8 disasm_opcode; /* Subtype used for disassembly */\
708 char aml_op_name[16]) /* Op name (debug only) */ 708 char aml_op_name[16]) /* Op name (debug only) */
709 709
710#define ACPI_DASM_BUFFER 0x00 710/* Flags for disasm_flags field above */
711#define ACPI_DASM_RESOURCE 0x01 711
712#define ACPI_DASM_STRING 0x02 712#define ACPI_DASM_BUFFER 0x00 /* Buffer is a simple data buffer */
713#define ACPI_DASM_UNICODE 0x03 713#define ACPI_DASM_RESOURCE 0x01 /* Buffer is a Resource Descriptor */
714#define ACPI_DASM_EISAID 0x04 714#define ACPI_DASM_STRING 0x02 /* Buffer is a ASCII string */
715#define ACPI_DASM_MATCHOP 0x05 715#define ACPI_DASM_UNICODE 0x03 /* Buffer is a Unicode string */
716#define ACPI_DASM_LNOT_PREFIX 0x06 716#define ACPI_DASM_PLD_METHOD 0x04 /* Buffer is a _PLD method bit-packed buffer */
717#define ACPI_DASM_LNOT_SUFFIX 0x07 717#define ACPI_DASM_EISAID 0x05 /* Integer is an EISAID */
718#define ACPI_DASM_IGNORE 0x08 718#define ACPI_DASM_MATCHOP 0x06 /* Parent opcode is a Match() operator */
719#define ACPI_DASM_LNOT_PREFIX 0x07 /* Start of a Lnot_equal (etc.) pair of opcodes */
720#define ACPI_DASM_LNOT_SUFFIX 0x08 /* End of a Lnot_equal (etc.) pair of opcodes */
721#define ACPI_DASM_IGNORE 0x09 /* Not used at this time */
719 722
720/* 723/*
721 * Generic operation (for example: If, While, Store) 724 * Generic operation (for example: If, While, Store)
@@ -1025,6 +1028,7 @@ struct acpi_port_info {
1025 ****************************************************************************/ 1028 ****************************************************************************/
1026 1029
1027struct acpi_db_method_info { 1030struct acpi_db_method_info {
1031 acpi_handle method;
1028 acpi_handle main_thread_gate; 1032 acpi_handle main_thread_gate;
1029 acpi_handle thread_complete_gate; 1033 acpi_handle thread_complete_gate;
1030 acpi_thread_id *threads; 1034 acpi_thread_id *threads;
diff --git a/drivers/acpi/acpica/acmacros.h b/drivers/acpi/acpica/acmacros.h
index 832b6198652e..a7f68c47f517 100644
--- a/drivers/acpi/acpica/acmacros.h
+++ b/drivers/acpi/acpica/acmacros.h
@@ -277,10 +277,33 @@
277 277
278/* Bitfields within ACPI registers */ 278/* Bitfields within ACPI registers */
279 279
280#define ACPI_REGISTER_PREPARE_BITS(val, pos, mask) ((val << pos) & mask) 280#define ACPI_REGISTER_PREPARE_BITS(val, pos, mask) \
281#define ACPI_REGISTER_INSERT_VALUE(reg, pos, mask, val) reg = (reg & (~(mask))) | ACPI_REGISTER_PREPARE_BITS(val, pos, mask) 281 ((val << pos) & mask)
282 282
283#define ACPI_INSERT_BITS(target, mask, source) target = ((target & (~(mask))) | (source & mask)) 283#define ACPI_REGISTER_INSERT_VALUE(reg, pos, mask, val) \
284 reg = (reg & (~(mask))) | ACPI_REGISTER_PREPARE_BITS(val, pos, mask)
285
286#define ACPI_INSERT_BITS(target, mask, source) \
287 target = ((target & (~(mask))) | (source & mask))
288
289/* Generic bitfield macros and masks */
290
291#define ACPI_GET_BITS(source_ptr, position, mask) \
292 ((*source_ptr >> position) & mask)
293
294#define ACPI_SET_BITS(target_ptr, position, mask, value) \
295 (*target_ptr |= ((value & mask) << position))
296
297#define ACPI_1BIT_MASK 0x00000001
298#define ACPI_2BIT_MASK 0x00000003
299#define ACPI_3BIT_MASK 0x00000007
300#define ACPI_4BIT_MASK 0x0000000F
301#define ACPI_5BIT_MASK 0x0000001F
302#define ACPI_6BIT_MASK 0x0000003F
303#define ACPI_7BIT_MASK 0x0000007F
304#define ACPI_8BIT_MASK 0x000000FF
305#define ACPI_16BIT_MASK 0x0000FFFF
306#define ACPI_24BIT_MASK 0x00FFFFFF
284 307
285/* 308/*
286 * An object of type struct acpi_namespace_node can appear in some contexts 309 * An object of type struct acpi_namespace_node can appear in some contexts
diff --git a/drivers/acpi/acpica/utxface.c b/drivers/acpi/acpica/utxface.c
index 667229dbcbad..b09632b4f5b3 100644
--- a/drivers/acpi/acpica/utxface.c
+++ b/drivers/acpi/acpica/utxface.c
@@ -418,3 +418,90 @@ acpi_check_address_range(acpi_adr_space_type space_id,
418 418
419ACPI_EXPORT_SYMBOL(acpi_check_address_range) 419ACPI_EXPORT_SYMBOL(acpi_check_address_range)
420#endif /* !ACPI_ASL_COMPILER */ 420#endif /* !ACPI_ASL_COMPILER */
421/*******************************************************************************
422 *
423 * FUNCTION: acpi_decode_pld_buffer
424 *
425 * PARAMETERS: in_buffer - Buffer returned by _PLD method
426 * length - Length of the in_buffer
427 * return_buffer - Where the decode buffer is returned
428 *
429 * RETURN: Status and the decoded _PLD buffer. User must deallocate
430 * the buffer via ACPI_FREE.
431 *
432 * DESCRIPTION: Decode the bit-packed buffer returned by the _PLD method into
433 * a local struct that is much more useful to an ACPI driver.
434 *
435 ******************************************************************************/
436acpi_status
437acpi_decode_pld_buffer(u8 *in_buffer,
438 acpi_size length, struct acpi_pld_info ** return_buffer)
439{
440 struct acpi_pld_info *pld_info;
441 u32 *buffer = ACPI_CAST_PTR(u32, in_buffer);
442 u32 dword;
443
444 /* Parameter validation */
445
446 if (!in_buffer || !return_buffer || (length < 16)) {
447 return (AE_BAD_PARAMETER);
448 }
449
450 pld_info = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_pld_info));
451 if (!pld_info) {
452 return (AE_NO_MEMORY);
453 }
454
455 /* First 32-bit DWord */
456
457 ACPI_MOVE_32_TO_32(&dword, &buffer[0]);
458 pld_info->revision = ACPI_PLD_GET_REVISION(&dword);
459 pld_info->ignore_color = ACPI_PLD_GET_IGNORE_COLOR(&dword);
460 pld_info->color = ACPI_PLD_GET_COLOR(&dword);
461
462 /* Second 32-bit DWord */
463
464 ACPI_MOVE_32_TO_32(&dword, &buffer[1]);
465 pld_info->width = ACPI_PLD_GET_WIDTH(&dword);
466 pld_info->height = ACPI_PLD_GET_HEIGHT(&dword);
467
468 /* Third 32-bit DWord */
469
470 ACPI_MOVE_32_TO_32(&dword, &buffer[2]);
471 pld_info->user_visible = ACPI_PLD_GET_USER_VISIBLE(&dword);
472 pld_info->dock = ACPI_PLD_GET_DOCK(&dword);
473 pld_info->lid = ACPI_PLD_GET_LID(&dword);
474 pld_info->panel = ACPI_PLD_GET_PANEL(&dword);
475 pld_info->vertical_position = ACPI_PLD_GET_VERTICAL(&dword);
476 pld_info->horizontal_position = ACPI_PLD_GET_HORIZONTAL(&dword);
477 pld_info->shape = ACPI_PLD_GET_SHAPE(&dword);
478 pld_info->group_orientation = ACPI_PLD_GET_ORIENTATION(&dword);
479 pld_info->group_token = ACPI_PLD_GET_TOKEN(&dword);
480 pld_info->group_position = ACPI_PLD_GET_POSITION(&dword);
481 pld_info->bay = ACPI_PLD_GET_BAY(&dword);
482
483 /* Fourth 32-bit DWord */
484
485 ACPI_MOVE_32_TO_32(&dword, &buffer[3]);
486 pld_info->ejectable = ACPI_PLD_GET_EJECTABLE(&dword);
487 pld_info->ospm_eject_required = ACPI_PLD_GET_OSPM_EJECT(&dword);
488 pld_info->cabinet_number = ACPI_PLD_GET_CABINET(&dword);
489 pld_info->card_cage_number = ACPI_PLD_GET_CARD_CAGE(&dword);
490 pld_info->reference = ACPI_PLD_GET_REFERENCE(&dword);
491 pld_info->rotation = ACPI_PLD_GET_ROTATION(&dword);
492 pld_info->order = ACPI_PLD_GET_ORDER(&dword);
493
494 if (length >= ACPI_PLD_BUFFER_SIZE) {
495
496 /* Fifth 32-bit DWord (Revision 2 of _PLD) */
497
498 ACPI_MOVE_32_TO_32(&dword, &buffer[4]);
499 pld_info->vertical_offset = ACPI_PLD_GET_VERT_OFFSET(&dword);
500 pld_info->horizontal_offset = ACPI_PLD_GET_HORIZ_OFFSET(&dword);
501 }
502
503 *return_buffer = pld_info;
504 return (AE_OK);
505}
506
507ACPI_EXPORT_SYMBOL(acpi_decode_pld_buffer)
diff --git a/include/acpi/acbuffer.h b/include/acpi/acbuffer.h
new file mode 100644
index 000000000000..2c3b44789f95
--- /dev/null
+++ b/include/acpi/acbuffer.h
@@ -0,0 +1,192 @@
1/******************************************************************************
2 *
3 * Name: acbuffer.h - Support for buffers returned by ACPI predefined names
4 *
5 *****************************************************************************/
6
7/*
8 * Copyright (C) 2000 - 2012, 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 __ACBUFFER_H__
45#define __ACBUFFER_H__
46
47/*
48 * Note: C bitfields are not used for this reason:
49 *
50 * "Bitfields are great and easy to read, but unfortunately the C language
51 * does not specify the layout of bitfields in memory, which means they are
52 * essentially useless for dealing with packed data in on-disk formats or
53 * binary wire protocols." (Or ACPI tables and buffers.) "If you ask me,
54 * this decision was a design error in C. Ritchie could have picked an order
55 * and stuck with it." Norman Ramsey.
56 * See http://stackoverflow.com/a/1053662/41661
57 */
58
59/*
60 * Formatted _PLD return value. The minimum size is a package containing
61 * one buffer.
62 * Revision 1: Buffer is 16 bytes (128 bits)
63 * Revision 2: Buffer is 20 bytes (160 bits)
64 *
65 * Note: This structure is returned from the acpi_decode_pld_buffer
66 * interface.
67 */
68struct acpi_pld_info {
69 u8 revision;
70 u8 ignore_color;
71 u32 color;
72 u16 width;
73 u16 height;
74 u8 user_visible;
75 u8 dock;
76 u8 lid;
77 u8 panel;
78 u8 vertical_position;
79 u8 horizontal_position;
80 u8 shape;
81 u8 group_orientation;
82 u8 group_token;
83 u8 group_position;
84 u8 bay;
85 u8 ejectable;
86 u8 ospm_eject_required;
87 u8 cabinet_number;
88 u8 card_cage_number;
89 u8 reference;
90 u8 rotation;
91 u8 order;
92 u8 reserved;
93 u16 vertical_offset;
94 u16 horizontal_offset;
95};
96
97/*
98 * Macros to:
99 * 1) Convert a _PLD buffer to internal struct acpi_pld_info format - ACPI_PLD_GET*
100 * (Used by acpi_decode_pld_buffer)
101 * 2) Construct a _PLD buffer - ACPI_PLD_SET*
102 * (Intended for BIOS use only)
103 */
104#define ACPI_PLD_REV1_BUFFER_SIZE 16 /* For Revision 1 of the buffer (From ACPI spec) */
105#define ACPI_PLD_BUFFER_SIZE 20 /* For Revision 2 of the buffer (From ACPI spec) */
106
107/* First 32-bit dword, bits 0:32 */
108
109#define ACPI_PLD_GET_REVISION(dword) ACPI_GET_BITS (dword, 0, ACPI_7BIT_MASK)
110#define ACPI_PLD_SET_REVISION(dword,value) ACPI_SET_BITS (dword, 0, ACPI_7BIT_MASK, value) /* Offset 0, Len 7 */
111
112#define ACPI_PLD_GET_IGNORE_COLOR(dword) ACPI_GET_BITS (dword, 7, ACPI_1BIT_MASK)
113#define ACPI_PLD_SET_IGNORE_COLOR(dword,value) ACPI_SET_BITS (dword, 7, ACPI_1BIT_MASK, value) /* Offset 7, Len 1 */
114
115#define ACPI_PLD_GET_COLOR(dword) ACPI_GET_BITS (dword, 8, ACPI_24BIT_MASK)
116#define ACPI_PLD_SET_COLOR(dword,value) ACPI_SET_BITS (dword, 8, ACPI_24BIT_MASK, value) /* Offset 8, Len 24 */
117
118/* Second 32-bit dword, bits 33:63 */
119
120#define ACPI_PLD_GET_WIDTH(dword) ACPI_GET_BITS (dword, 0, ACPI_16BIT_MASK)
121#define ACPI_PLD_SET_WIDTH(dword,value) ACPI_SET_BITS (dword, 0, ACPI_16BIT_MASK, value) /* Offset 32+0=32, Len 16 */
122
123#define ACPI_PLD_GET_HEIGHT(dword) ACPI_GET_BITS (dword, 16, ACPI_16BIT_MASK)
124#define ACPI_PLD_SET_HEIGHT(dword,value) ACPI_SET_BITS (dword, 16, ACPI_16BIT_MASK, value) /* Offset 32+16=48, Len 16 */
125
126/* Third 32-bit dword, bits 64:95 */
127
128#define ACPI_PLD_GET_USER_VISIBLE(dword) ACPI_GET_BITS (dword, 0, ACPI_1BIT_MASK)
129#define ACPI_PLD_SET_USER_VISIBLE(dword,value) ACPI_SET_BITS (dword, 0, ACPI_1BIT_MASK, value) /* Offset 64+0=64, Len 1 */
130
131#define ACPI_PLD_GET_DOCK(dword) ACPI_GET_BITS (dword, 1, ACPI_1BIT_MASK)
132#define ACPI_PLD_SET_DOCK(dword,value) ACPI_SET_BITS (dword, 1, ACPI_1BIT_MASK, value) /* Offset 64+1=65, Len 1 */
133
134#define ACPI_PLD_GET_LID(dword) ACPI_GET_BITS (dword, 2, ACPI_1BIT_MASK)
135#define ACPI_PLD_SET_LID(dword,value) ACPI_SET_BITS (dword, 2, ACPI_1BIT_MASK, value) /* Offset 64+2=66, Len 1 */
136
137#define ACPI_PLD_GET_PANEL(dword) ACPI_GET_BITS (dword, 3, ACPI_3BIT_MASK)
138#define ACPI_PLD_SET_PANEL(dword,value) ACPI_SET_BITS (dword, 3, ACPI_3BIT_MASK, value) /* Offset 64+3=67, Len 3 */
139
140#define ACPI_PLD_GET_VERTICAL(dword) ACPI_GET_BITS (dword, 6, ACPI_2BIT_MASK)
141#define ACPI_PLD_SET_VERTICAL(dword,value) ACPI_SET_BITS (dword, 6, ACPI_2BIT_MASK, value) /* Offset 64+6=70, Len 2 */
142
143#define ACPI_PLD_GET_HORIZONTAL(dword) ACPI_GET_BITS (dword, 8, ACPI_2BIT_MASK)
144#define ACPI_PLD_SET_HORIZONTAL(dword,value) ACPI_SET_BITS (dword, 8, ACPI_2BIT_MASK, value) /* Offset 64+8=72, Len 2 */
145
146#define ACPI_PLD_GET_SHAPE(dword) ACPI_GET_BITS (dword, 10, ACPI_4BIT_MASK)
147#define ACPI_PLD_SET_SHAPE(dword,value) ACPI_SET_BITS (dword, 10, ACPI_4BIT_MASK, value) /* Offset 64+10=74, Len 4 */
148
149#define ACPI_PLD_GET_ORIENTATION(dword) ACPI_GET_BITS (dword, 14, ACPI_1BIT_MASK)
150#define ACPI_PLD_SET_ORIENTATION(dword,value) ACPI_SET_BITS (dword, 14, ACPI_1BIT_MASK, value) /* Offset 64+14=78, Len 1 */
151
152#define ACPI_PLD_GET_TOKEN(dword) ACPI_GET_BITS (dword, 15, ACPI_8BIT_MASK)
153#define ACPI_PLD_SET_TOKEN(dword,value) ACPI_SET_BITS (dword, 15, ACPI_8BIT_MASK, value) /* Offset 64+15=79, Len 8 */
154
155#define ACPI_PLD_GET_POSITION(dword) ACPI_GET_BITS (dword, 23, ACPI_8BIT_MASK)
156#define ACPI_PLD_SET_POSITION(dword,value) ACPI_SET_BITS (dword, 23, ACPI_8BIT_MASK, value) /* Offset 64+23=87, Len 8 */
157
158#define ACPI_PLD_GET_BAY(dword) ACPI_GET_BITS (dword, 31, ACPI_1BIT_MASK)
159#define ACPI_PLD_SET_BAY(dword,value) ACPI_SET_BITS (dword, 31, ACPI_1BIT_MASK, value) /* Offset 64+31=95, Len 1 */
160
161/* Fourth 32-bit dword, bits 96:127 */
162
163#define ACPI_PLD_GET_EJECTABLE(dword) ACPI_GET_BITS (dword, 0, ACPI_1BIT_MASK)
164#define ACPI_PLD_SET_EJECTABLE(dword,value) ACPI_SET_BITS (dword, 0, ACPI_1BIT_MASK, value) /* Offset 96+0=96, Len 1 */
165
166#define ACPI_PLD_GET_OSPM_EJECT(dword) ACPI_GET_BITS (dword, 1, ACPI_1BIT_MASK)
167#define ACPI_PLD_SET_OSPM_EJECT(dword,value) ACPI_SET_BITS (dword, 1, ACPI_1BIT_MASK, value) /* Offset 96+1=97, Len 1 */
168
169#define ACPI_PLD_GET_CABINET(dword) ACPI_GET_BITS (dword, 2, ACPI_8BIT_MASK)
170#define ACPI_PLD_SET_CABINET(dword,value) ACPI_SET_BITS (dword, 2, ACPI_8BIT_MASK, value) /* Offset 96+2=98, Len 8 */
171
172#define ACPI_PLD_GET_CARD_CAGE(dword) ACPI_GET_BITS (dword, 10, ACPI_8BIT_MASK)
173#define ACPI_PLD_SET_CARD_CAGE(dword,value) ACPI_SET_BITS (dword, 10, ACPI_8BIT_MASK, value) /* Offset 96+10=106, Len 8 */
174
175#define ACPI_PLD_GET_REFERENCE(dword) ACPI_GET_BITS (dword, 18, ACPI_1BIT_MASK)
176#define ACPI_PLD_SET_REFERENCE(dword,value) ACPI_SET_BITS (dword, 18, ACPI_1BIT_MASK, value) /* Offset 96+18=114, Len 1 */
177
178#define ACPI_PLD_GET_ROTATION(dword) ACPI_GET_BITS (dword, 19, ACPI_4BIT_MASK)
179#define ACPI_PLD_SET_ROTATION(dword,value) ACPI_SET_BITS (dword, 19, ACPI_4BIT_MASK, value) /* Offset 96+19=115, Len 4 */
180
181#define ACPI_PLD_GET_ORDER(dword) ACPI_GET_BITS (dword, 23, ACPI_5BIT_MASK)
182#define ACPI_PLD_SET_ORDER(dword,value) ACPI_SET_BITS (dword, 23, ACPI_5BIT_MASK, value) /* Offset 96+23=119, Len 5 */
183
184/* Fifth 32-bit dword, bits 128:159 (Revision 2 of _PLD only) */
185
186#define ACPI_PLD_GET_VERT_OFFSET(dword) ACPI_GET_BITS (dword, 0, ACPI_16BIT_MASK)
187#define ACPI_PLD_SET_VERT_OFFSET(dword,value) ACPI_SET_BITS (dword, 0, ACPI_16BIT_MASK, value) /* Offset 128+0=128, Len 16 */
188
189#define ACPI_PLD_GET_HORIZ_OFFSET(dword) ACPI_GET_BITS (dword, 16, ACPI_16BIT_MASK)
190#define ACPI_PLD_SET_HORIZ_OFFSET(dword,value) ACPI_SET_BITS (dword, 16, ACPI_16BIT_MASK, value) /* Offset 128+16=144, Len 16 */
191
192#endif /* ACBUFFER_H */
diff --git a/include/acpi/acnames.h b/include/acpi/acnames.h
index d2f61dd2d723..745dd24e3cb5 100644
--- a/include/acpi/acnames.h
+++ b/include/acpi/acnames.h
@@ -63,6 +63,7 @@
63#define METHOD_NAME__PRW "_PRW" 63#define METHOD_NAME__PRW "_PRW"
64#define METHOD_NAME__SRS "_SRS" 64#define METHOD_NAME__SRS "_SRS"
65#define METHOD_NAME__CBA "_CBA" 65#define METHOD_NAME__CBA "_CBA"
66#define METHOD_NAME__PLD "_PLD"
66 67
67/* Method names - these methods must appear at the namespace root */ 68/* Method names - these methods must appear at the namespace root */
68 69
diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h
index 26a92fc28a59..270517d6b1b8 100644
--- a/include/acpi/acpixf.h
+++ b/include/acpi/acpixf.h
@@ -52,6 +52,7 @@
52#include "acconfig.h" 52#include "acconfig.h"
53#include "actypes.h" 53#include "actypes.h"
54#include "actbl.h" 54#include "actbl.h"
55#include "acbuffer.h"
55 56
56extern u8 acpi_gbl_permanent_mmap; 57extern u8 acpi_gbl_permanent_mmap;
57 58
@@ -144,6 +145,10 @@ acpi_check_address_range(acpi_adr_space_type space_id,
144 acpi_physical_address address, 145 acpi_physical_address address,
145 acpi_size length, u8 warn); 146 acpi_size length, u8 warn);
146 147
148acpi_status
149acpi_decode_pld_buffer(u8 *in_buffer,
150 acpi_size length, struct acpi_pld_info **return_buffer);
151
147/* 152/*
148 * ACPI Memory management 153 * ACPI Memory management
149 */ 154 */
diff --git a/include/acpi/actbl.h b/include/acpi/actbl.h
index d54e3580b7d1..4f94b1d812d5 100644
--- a/include/acpi/actbl.h
+++ b/include/acpi/actbl.h
@@ -79,9 +79,15 @@
79#pragma pack(1) 79#pragma pack(1)
80 80
81/* 81/*
82 * Note about bitfields: The u8 type is used for bitfields in ACPI tables. 82 * Note: C bitfields are not used for this reason:
83 * This is the only type that is even remotely portable. Anything else is not 83 *
84 * portable, so do not use any other bitfield types. 84 * "Bitfields are great and easy to read, but unfortunately the C language
85 * does not specify the layout of bitfields in memory, which means they are
86 * essentially useless for dealing with packed data in on-disk formats or
87 * binary wire protocols." (Or ACPI tables and buffers.) "If you ask me,
88 * this decision was a design error in C. Ritchie could have picked an order
89 * and stuck with it." Norman Ramsey.
90 * See http://stackoverflow.com/a/1053662/41661
85 */ 91 */
86 92
87/******************************************************************************* 93/*******************************************************************************
diff --git a/include/acpi/actbl1.h b/include/acpi/actbl1.h
index 300d14e7c5d5..c41d6f96ed7d 100644
--- a/include/acpi/actbl1.h
+++ b/include/acpi/actbl1.h
@@ -79,9 +79,15 @@
79#pragma pack(1) 79#pragma pack(1)
80 80
81/* 81/*
82 * Note about bitfields: The u8 type is used for bitfields in ACPI tables. 82 * Note: C bitfields are not used for this reason:
83 * This is the only type that is even remotely portable. Anything else is not 83 *
84 * portable, so do not use any other bitfield types. 84 * "Bitfields are great and easy to read, but unfortunately the C language
85 * does not specify the layout of bitfields in memory, which means they are
86 * essentially useless for dealing with packed data in on-disk formats or
87 * binary wire protocols." (Or ACPI tables and buffers.) "If you ask me,
88 * this decision was a design error in C. Ritchie could have picked an order
89 * and stuck with it." Norman Ramsey.
90 * See http://stackoverflow.com/a/1053662/41661
85 */ 91 */
86 92
87/******************************************************************************* 93/*******************************************************************************
diff --git a/include/acpi/actbl2.h b/include/acpi/actbl2.h
index b74476c0be8b..1b2b356486d1 100644
--- a/include/acpi/actbl2.h
+++ b/include/acpi/actbl2.h
@@ -98,9 +98,15 @@
98#pragma pack(1) 98#pragma pack(1)
99 99
100/* 100/*
101 * Note about bitfields: The u8 type is used for bitfields in ACPI tables. 101 * Note: C bitfields are not used for this reason:
102 * This is the only type that is even remotely portable. Anything else is not 102 *
103 * portable, so do not use any other bitfield types. 103 * "Bitfields are great and easy to read, but unfortunately the C language
104 * does not specify the layout of bitfields in memory, which means they are
105 * essentially useless for dealing with packed data in on-disk formats or
106 * binary wire protocols." (Or ACPI tables and buffers.) "If you ask me,
107 * this decision was a design error in C. Ritchie could have picked an order
108 * and stuck with it." Norman Ramsey.
109 * See http://stackoverflow.com/a/1053662/41661
104 */ 110 */
105 111
106/******************************************************************************* 112/*******************************************************************************
diff --git a/include/acpi/actbl3.h b/include/acpi/actbl3.h
index 37781ab806a5..8c61b5fe42a4 100644
--- a/include/acpi/actbl3.h
+++ b/include/acpi/actbl3.h
@@ -86,9 +86,15 @@
86#pragma pack(1) 86#pragma pack(1)
87 87
88/* 88/*
89 * Note about bitfields: The u8 type is used for bitfields in ACPI tables. 89 * Note: C bitfields are not used for this reason:
90 * This is the only type that is even remotely portable. Anything else is not 90 *
91 * portable, so do not use any other bitfield types. 91 * "Bitfields are great and easy to read, but unfortunately the C language
92 * does not specify the layout of bitfields in memory, which means they are
93 * essentially useless for dealing with packed data in on-disk formats or
94 * binary wire protocols." (Or ACPI tables and buffers.) "If you ask me,
95 * this decision was a design error in C. Ritchie could have picked an order
96 * and stuck with it." Norman Ramsey.
97 * See http://stackoverflow.com/a/1053662/41661
92 */ 98 */
93 99
94/******************************************************************************* 100/*******************************************************************************
generated by cgit v1.2.2 (git 2.25.0) at 2025-12-30 12:33:33 -0500