X-Git-Url: http://www.pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=Documentation%2Fkernel-parameters.txt;h=8a8cb0ccc5f4e2c7515a00cb861882f88771c85a;hb=b225d44e27521290faca2e0f9b1a4a8c74dc510a;hp=53ba7c7d82b342d50053f6458225b29123bee747;hpb=724bdd097e4d47b6ad963db5d92258ab5c485e05;p=linux-2.6-omap-h63xx.git diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 53ba7c7d82b..8a8cb0ccc5f 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -100,7 +100,7 @@ parameter is applicable: X86-32 X86-32, aka i386 architecture is enabled. X86-64 X86-64 architecture is enabled. More X86-64 boot options can be found in - Documentation/x86_64/boot-options.txt . + Documentation/x86/x86_64/boot-options.txt . X86 Either 32bit or 64bit x86 (same as X86-32+X86-64) In addition, the following text indicates that the option: @@ -112,10 +112,10 @@ In addition, the following text indicates that the option: Parameters denoted with BOOT are actually interpreted by the boot loader, and have no meaning to the kernel directly. Do not modify the syntax of boot loader parameters without extreme -need or coordination with . +need or coordination with . There are also arch-specific kernel-parameters not documented here. -See for example . +See for example . Note that ALL kernel parameters listed below are CASE SENSITIVE, and that a trailing = on the name of any parameter states that that parameter will @@ -218,20 +218,47 @@ and is between 256 and 4096 characters. It is defined in the file acpi.debug_level= [HW,ACPI] Format: Each bit of the indicates an ACPI debug level, - 1: enable, 0: disable. It is useful for boot time - debugging. After system has booted up, it can be set - 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. + which corresponds to the level in an ACPI_DEBUG_PRINT + statement. After system has booted up, this mask + can be set via /sys/module/acpi/parameters/debug_level. + + CONFIG_ACPI_DEBUG must be enabled for this to produce + any output. The number can be in decimal or prefixed + with 0x in hex. Some of these options produce so much + output that the system is unusable. + + The following global components are defined by the + ACPI CA: + 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.power_nocheck= [HW,ACPI] + Format: 1/0 enable/disable the check of power state. + On some bogus BIOS the _PSC object/_STA object of + power resource can't return the correct device power + state. In such case it is unneccessary to check its + power state again in power transition. + 1 : disable the power state check acpi_pm_good [X86-32,X86-64] Override the pmtimer bug detection: force the kernel @@ -968,13 +995,15 @@ and is between 256 and 4096 characters. It is defined in the file Format: ,..., or - - (must be a positive range in ascending order) + - + (must be a positive range in ascending order) or a mixture ,...,- + This option can be used to specify one or more CPUs to isolate from the general SMP balancing and scheduling - algorithms. The only way to move a process onto or off - an "isolated" CPU is via the CPU affinity syscalls. + algorithms. You can move a process onto or off an + "isolated" CPU via the CPU affinity syscalls or cpuset. begins at 0 and the maximum value is "number of CPUs in system - 1". @@ -1195,7 +1224,7 @@ and is between 256 and 4096 characters. It is defined in the file mce [X86-32] Machine Check Exception - mce=option [X86-64] See Documentation/x86_64/boot-options.txt + mce=option [X86-64] See Documentation/x86/x86_64/boot-options.txt md= [HW] RAID subsystems devices and level See Documentation/md.txt. @@ -1701,7 +1730,7 @@ and is between 256 and 4096 characters. It is defined in the file See Documentation/paride.txt. pirq= [SMP,APIC] Manual mp-table setup - See Documentation/i386/IO-APIC.txt. + See Documentation/x86/i386/IO-APIC.txt. plip= [PPT,NET] Parallel port network link Format: { parport | timid | 0 } @@ -1711,6 +1740,10 @@ and is between 256 and 4096 characters. It is defined in the file Override pmtimer IOPort with a hex value. e.g. pmtmr=0x508 + pnp.debug [PNP] + Enable PNP debug messages. This depends on the + CONFIG_PNP_DEBUG_MESSAGES option. + pnpacpi= [ACPI] { off } @@ -2208,7 +2241,7 @@ and is between 256 and 4096 characters. It is defined in the file thermal.crt= [HW,ACPI] -1: disable all critical trip points in all thermal zones - : lower all critical trip points + : override all critical trip points thermal.nocrt= [HW,ACPI] Set to disable actions on ACPI thermal zone @@ -2312,7 +2345,7 @@ and is between 256 and 4096 characters. It is defined in the file See Documentation/fb/modedb.txt. vga= [BOOT,X86-32] Select a particular video mode - See Documentation/i386/boot.txt and + See Documentation/x86/i386/boot.txt and Documentation/svga.txt. Use vga=ask for menu. This is actually a boot loader parameter; the value is