236 lines
9.1 KiB
ReStructuredText
236 lines
9.1 KiB
ReStructuredText
.. SPDX-License-Identifier: GPL-2.0+:
|
|
|
|
acpi command
|
|
============
|
|
|
|
Synopis
|
|
-------
|
|
|
|
::
|
|
|
|
acpi list
|
|
acpi items [-d]
|
|
acpi dump <name>
|
|
|
|
Description
|
|
-----------
|
|
|
|
The *acpi* command is used to dump the ACPI tables generated by U-Boot for passing
|
|
to the operating systems.
|
|
|
|
ACPI tables can be generated by various output functions and even devices can
|
|
output material to include in the Differentiated System Description Table (DSDT)
|
|
and SSDT tables (Secondary System Description Table). U-Boot keeps track of
|
|
which device or table-writer produced each piece of the ACPI tables.
|
|
|
|
The ACPI tables are stored contiguously in memory.
|
|
|
|
|
|
acpi list
|
|
~~~~~~~~~
|
|
|
|
List the ACPI tables that have been generated. Each table has a 4-character
|
|
table name (e.g. SSDT, FACS) and has a format defined by the
|
|
`ACPI specification`_.
|
|
|
|
U-Boot does not currently support decoding the tables. Unlike devicetree, ACPI
|
|
tables have no regular schema and also some include bytecode, so decoding the
|
|
tables requires a lot of code.
|
|
|
|
The table shows the following information:
|
|
|
|
Name
|
|
Table name, e.g. `MCFG`
|
|
|
|
Base
|
|
Base address of table in memory
|
|
|
|
Size
|
|
Size of table in bytes
|
|
|
|
Detail
|
|
More information depending on the table type
|
|
|
|
Revision
|
|
Table revision number (two decimal digits)
|
|
|
|
OEM ID
|
|
ID for the Original Equipment Manufacturer. Typically this is "U-BOOT".
|
|
|
|
OEM Table ID
|
|
Table ID for the Original Equipment Manufacturer. Typically this is
|
|
"U-BOOTBL" (U-Boot bootloader)
|
|
|
|
OEM Revision
|
|
Revision string for the Original Equipment Manufacturer. Typically this
|
|
is the U-Boot release number, e.g. 20220101 (meaning v2022.01 since the
|
|
final 01 is not used). For DSDT, this is set by the source code in
|
|
the parameters of DefinitionBlock().
|
|
|
|
ACPI compiler-vendor ID
|
|
This is normally `INTL` for Intel
|
|
|
|
ACPI compiler revision
|
|
This is the compiler revision. It is set to the version string for the
|
|
DSDT table but other tables just use the value 0 or 1, since U-Boot does
|
|
not actually use the compiler in these cases. It generates the code
|
|
itself.
|
|
|
|
acpi items
|
|
~~~~~~~~~~
|
|
|
|
List the ACPI data that was generated, broken down by item. An item is either
|
|
an ACPI table generated by a writer function, or the part of a table that was
|
|
generated by a particular device.
|
|
|
|
The `-d` flag also shows a binary dump of the table.
|
|
|
|
The table shows the following information about each item:
|
|
|
|
Seq
|
|
Sequence number in hex
|
|
|
|
Type
|
|
Type of item
|
|
|
|
===== ============================================================
|
|
Type Meaning
|
|
===== ============================================================
|
|
dsdt Fragment of a DSDT table, as generated by a device
|
|
ssdt Fragment of a SSDT table, as generated by a device
|
|
other A whole table of a particular type. as generated by a writer
|
|
===== ============================================================
|
|
|
|
Base
|
|
Base address of table in memory
|
|
|
|
Size
|
|
Size of table in bytes
|
|
|
|
Device / Writer
|
|
Name of device (for ssdt/dsdt) that wrong this fragment of the table, or
|
|
name of the registered writer function (otherwise) that wrote the table.
|
|
|
|
acpi dump
|
|
~~~~~~~~~
|
|
|
|
Dump a paticular ACPI table in binary format. This can be used to read the table
|
|
if you have the specification handy.
|
|
|
|
|
|
Example
|
|
-------
|
|
|
|
::
|
|
|
|
=> acpi list
|
|
Name Base Size Detail
|
|
---- -------- ----- ------
|
|
RSDP 79925000 24 v02 U-BOOT
|
|
RSDT 79925030 48 v01 U-BOOT U-BOOTBL 20220101 INTL 0
|
|
XSDT 799250e0 6c v01 U-BOOT U-BOOTBL 20220101 INTL 0
|
|
FACP 79929570 f4 v04 U-BOOT U-BOOTBL 20220101 INTL 1
|
|
DSDT 79925280 32ea v02 U-BOOT U-BOOTBL 20110725 INTL 20180105
|
|
FACS 79925240 40
|
|
MCFG 79929670 2c v01 U-BOOT U-BOOTBL 20220101 INTL 0
|
|
SPCR 799296a0 50 v02 U-BOOT U-BOOTBL 20220101 INTL 0
|
|
TPM2 799296f0 4c v04 U-BOOT U-BOOTBL 20220101 INTL 0
|
|
APIC 79929740 6c v02 U-BOOT U-BOOTBL 20220101 INTL 0
|
|
SSDT 799297b0 1523 v02 U-BOOT U-BOOTBL 20220101 INTL 1
|
|
NHLT 7992ace0 e60 v05 coral coral 3 INTL 0
|
|
DBG2 7992db40 61 v00 U-BOOT U-BOOTBL 20220101 INTL 0
|
|
HPET 7992dbb0 38 v01 U-BOOT U-BOOTBL 20220101 INTL 0
|
|
=> acpi items
|
|
Seq Type Base Size Device/Writer
|
|
--- ----- -------- ---- -------------
|
|
0 other 79925000 240 0base
|
|
1 other 79925240 40 1facs
|
|
2 dsdt 799252a4 58 board
|
|
3 dsdt 799252fc 10 lpc
|
|
4 other 79925280 32f0 3dsdt
|
|
5 other 79928570 1000 4gnvs
|
|
6 other 79929570 100 5fact
|
|
7 other 79929670 30 5mcfg
|
|
8 other 799296a0 50 5spcr
|
|
9 other 799296f0 50 5tpm2
|
|
a other 79929740 70 5x86
|
|
b ssdt 799297d4 fe maxim-codec
|
|
c ssdt 799298d2 28 i2c2@16,0
|
|
d ssdt 799298fa 270 da-codec
|
|
e ssdt 79929b6a 28 i2c2@16,1
|
|
f ssdt 79929b92 28 i2c2@16,2
|
|
10 ssdt 79929bba 83 tpm@50
|
|
11 ssdt 79929c3d 28 i2c2@16,3
|
|
12 ssdt 79929c65 282 elan-touchscreen@10
|
|
13 ssdt 79929ee7 285 raydium-touchscreen@39
|
|
14 ssdt 7992a16c 28 i2c2@17,0
|
|
15 ssdt 7992a194 d8 elan-touchpad@15
|
|
16 ssdt 7992a26c 163 synaptics-touchpad@2c
|
|
17 ssdt 7992a3cf 28 i2c2@17,1
|
|
18 ssdt 7992a3f7 111 wacom-digitizer@9
|
|
19 ssdt 7992a508 8f sdmmc@1b,0
|
|
1a ssdt 7992a597 4b wifi
|
|
1b ssdt 7992a5e2 1a0 cpu@0
|
|
1c ssdt 7992a782 1a0 cpu@1
|
|
1d ssdt 7992a922 1a0 cpu@2
|
|
1e ssdt 7992aac2 211 cpu@3
|
|
1f other 799297b0 1530 6ssdt
|
|
20 other 7992ace0 2f10 8dev
|
|
=> acpi dump mcfg
|
|
MCFG @ 79929670
|
|
00000000: 4d 43 46 47 2c 00 00 00 01 41 55 2d 42 4f 4f 54 MCFG,....AU-BOOT
|
|
00000010: 55 2d 42 4f 4f 54 42 4c 01 01 22 20 49 4e 54 4c U-BOOTBL.." INTL
|
|
00000020: 00 00 00 00 00 00 00 00 00 00 00 00 ............
|
|
=> acpi items -d
|
|
Seq Type Base Size Device/Writer
|
|
--- ----- -------- ---- -------------
|
|
0 other 79925000 240 0base
|
|
00000000: 52 53 44 20 50 54 52 20 9e 55 2d 42 4f 4f 54 02 RSD PTR .U-BOOT.
|
|
00000010: 30 50 92 79 24 00 00 00 e0 50 92 79 00 00 00 00 0P.y$....P.y....
|
|
00000020: a1 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
|
|
00000030: 52 53 44 54 48 00 00 00 01 8b 55 2d 42 4f 4f 54 RSDTH.....U-BOOT
|
|
00000040: 55 2d 42 4f 4f 54 42 4c 01 01 22 20 49 4e 54 4c U-BOOTBL.." INTL
|
|
00000050: 00 00 00 00 70 95 92 79 70 96 92 79 a0 96 92 79 ....p..yp..y...y
|
|
00000060: f0 96 92 79 40 97 92 79 b0 97 92 79 e0 ac 92 79 ...y@..y...y...y
|
|
00000070: 40 db 92 79 b0 db 92 79 00 00 00 00 00 00 00 00 @..y...y........
|
|
00000080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
|
|
00000090: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
|
|
000000a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
|
|
000000b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
|
|
000000c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
|
|
000000d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
|
|
000000e0: 58 53 44 54 6c 00 00 00 01 61 55 2d 42 4f 4f 54 XSDTl....aU-BOOT
|
|
000000f0: 55 2d 42 4f 4f 54 42 4c 01 01 22 20 49 4e 54 4c U-BOOTBL.." INTL
|
|
00000100: 00 00 00 00 70 95 92 79 00 00 00 00 70 96 92 79 ....p..y....p..y
|
|
00000110: 00 00 00 00 a0 96 92 79 00 00 00 00 f0 96 92 79 .......y.......y
|
|
00000120: 00 00 00 00 40 97 92 79 00 00 00 00 b0 97 92 79 ....@..y.......y
|
|
00000130: 00 00 00 00 e0 ac 92 79 00 00 00 00 40 db 92 79 .......y....@..y
|
|
00000140: 00 00 00 00 b0 db 92 79 00 00 00 00 00 00 00 00 .......y........
|
|
00000150: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
|
|
00000160: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
|
|
...
|
|
|
|
1 other 79925240 40 1facs
|
|
00000000: 46 41 43 53 40 00 00 00 00 00 00 00 00 00 00 00 FACS@...........
|
|
00000010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
|
|
00000020: 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
|
|
00000030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
|
|
|
|
2 dsdt 799252a4 58 board
|
|
00000000: 10 87 05 00 5c 00 08 4f 49 50 47 12 8c 04 00 03 ....\..OIPG.....
|
|
00000010: 12 8b 01 00 04 01 01 0e ff ff ff ff ff ff ff ff ................
|
|
00000020: 0d 49 4e 54 33 34 35 32 3a 30 31 00 12 85 01 00 .INT3452:01.....
|
|
00000030: 04 0a 03 01 0a 23 0d 49 4e 54 33 34 35 32 3a 30 .....#.INT3452:0
|
|
00000040: 31 00 12 85 01 00 04 0a 04 01 0a 0a 0d 49 4e 54 1............INT
|
|
00000050: 33 34 35 32 3a 30 30 00 3452:00.
|
|
|
|
3 dsdt 799252fc 10 lpc
|
|
00000000: 10 8f 00 00 5c 00 08 4e 56 53 41 0c 10 50 93 79 ....\..NVSA..P.y
|
|
|
|
4 other 79925280 32f0 3dsdt
|
|
00000000: 44 53 44 54 ea 32 00 00 02 eb 55 2d 42 4f 4f 54 DSDT.2....U-BOOT
|
|
00000010: 55 2d 42 4f 4f 54 42 4c 25 07 11 20 49 4e 54 4c U-BOOTBL%.. INTL
|
|
|
|
|
|
.. _`ACPI specification`: https://uefi.org/sites/default/files/resources/ACPI_6_3_final_Jan30.pdf
|