ACPI: Improve acpi debug documentation
Now we use acpi.debug_level and acpi.debug_layer as kernel boot parameters instead of acpi_dbg_level and acpi_dbg_layer. Thanks to Andi Kleen for pointing it out. Signed-off-by: Zhang Rui <rui.zhang@intel.com> Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
parent
f8993aff8b
commit
f989106cac
|
@ -181,19 +181,41 @@ and is between 256 and 4096 characters. It is defined in the file
|
||||||
that require a timer override, but don't have
|
that require a timer override, but don't have
|
||||||
HPET
|
HPET
|
||||||
|
|
||||||
acpi_dbg_layer= [HW,ACPI]
|
acpi.debug_layer= [HW,ACPI]
|
||||||
Format: <int>
|
Format: <int>
|
||||||
Each bit of the <int> indicates an ACPI debug layer,
|
Each bit of the <int> indicates an ACPI debug layer,
|
||||||
1: enable, 0: disable. It is useful for boot time
|
1: enable, 0: disable. It is useful for boot time
|
||||||
debugging. After system has booted up, it can be set
|
debugging. After system has booted up, it can be set
|
||||||
via /proc/acpi/debug_layer.
|
via /sys/module/acpi/parameters/debug_layer.
|
||||||
|
CONFIG_ACPI_DEBUG must be enabled for this to produce any output.
|
||||||
|
Available bits (add the numbers together) to enable debug output
|
||||||
|
for specific parts of the ACPI subsystem:
|
||||||
|
0x01 utilities 0x02 hardware 0x04 events 0x08 tables
|
||||||
|
0x10 namespace 0x20 parser 0x40 dispatcher
|
||||||
|
0x80 executer 0x100 resources 0x200 acpica debugger
|
||||||
|
0x400 os services 0x800 acpica disassembler.
|
||||||
|
The number can be in decimal or prefixed with 0x in hex.
|
||||||
|
Warning: Many of these options can produce a lot of
|
||||||
|
output and make your system unusable. Be very careful.
|
||||||
|
|
||||||
acpi_dbg_level= [HW,ACPI]
|
acpi.debug_level= [HW,ACPI]
|
||||||
Format: <int>
|
Format: <int>
|
||||||
Each bit of the <int> indicates an ACPI debug level,
|
Each bit of the <int> indicates an ACPI debug level,
|
||||||
1: enable, 0: disable. It is useful for boot time
|
1: enable, 0: disable. It is useful for boot time
|
||||||
debugging. After system has booted up, it can be set
|
debugging. After system has booted up, it can be set
|
||||||
via /proc/acpi/debug_level.
|
via /sys/module/acpi/parameters/debug_level.
|
||||||
|
CONFIG_ACPI_DEBUG must be enabled for this to produce any output.
|
||||||
|
Available bits (add the numbers together) to enable different
|
||||||
|
debug output levels of the ACPI subsystem:
|
||||||
|
0x01 error 0x02 warn 0x04 init 0x08 debug object
|
||||||
|
0x10 info 0x20 init names 0x40 parse 0x80 load
|
||||||
|
0x100 dispatch 0x200 execute 0x400 names 0x800 operation region
|
||||||
|
0x1000 bfield 0x2000 tables 0x4000 values 0x8000 objects
|
||||||
|
0x10000 resources 0x20000 user requests 0x40000 package.
|
||||||
|
The number can be in decimal or prefixed with 0x in hex.
|
||||||
|
Warning: Many of these options can produce a lot of
|
||||||
|
output and make your system unusable. Be very careful.
|
||||||
|
|
||||||
|
|
||||||
acpi_fake_ecdt [HW,ACPI] Workaround failure due to BIOS lacking ECDT
|
acpi_fake_ecdt [HW,ACPI] Workaround failure due to BIOS lacking ECDT
|
||||||
|
|
||||||
|
|
Loading…
Reference in a new issue