X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=Documentation%2Fkernel-parameters.txt;h=e7bea3e853044e54f3ee863ad3d295b0df84a522;hb=d84705969f898f294bc3fc32eca33580f14105bd;hp=09ad7450647bc81dff32a3eaf7ea3c0858f4a896;hpb=0679c2f47d50651018dd5e0bf35330f6e6ae35ec;p=linux-2.6-omap-h63xx.git diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 09ad7450647..c5d891fd75e 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -87,7 +87,8 @@ parameter is applicable: SH SuperH architecture is enabled. SMP The kernel is an SMP kernel. SPARC Sparc architecture is enabled. - SWSUSP Software suspend is enabled. + SWSUSP Software suspend (hibernation) is enabled. + SUSPEND System suspend states are enabled. TS Appropriate touchscreen support is enabled. USB USB support is enabled. USBHID USB Human Interface Device support is enabled. @@ -147,10 +148,12 @@ and is between 256 and 4096 characters. It is defined in the file default: 0 acpi_sleep= [HW,ACPI] Sleep options - Format: { s3_bios, s3_mode, s3_beep, old_ordering } + Format: { s3_bios, s3_mode, s3_beep, s4_nohwsig, old_ordering } See Documentation/power/video.txt for s3_bios and s3_mode. s3_beep is for debugging; it makes the PC's speaker beep as soon as the kernel's real-mode entry point is called. + s4_nohwsig prevents ACPI hardware signature from being + used during resume from hibernation. old_ordering causes the ACPI 1.0 ordering of the _PTS control method, wrt putting devices into low power states, to be enforced (the ACPI 2.0 ordering of _PTS is @@ -281,6 +284,11 @@ and is between 256 and 4096 characters. It is defined in the file isolate - enable device isolation (each device, as far as possible, will get its own protection domain) + fullflush - enable flushing of IO/TLB entries when + they are unmapped. Otherwise they are + flushed before they will be reused, which + is a lot of faster + amd_iommu_size= [HW,X86-64] Define the size of the aperture for the AMD IOMMU driver. Possible values are: @@ -362,6 +370,8 @@ and is between 256 and 4096 characters. It is defined in the file no delay (0). Format: integer + bootmem_debug [KNL] Enable bootmem allocator debug messages. + bttv.card= [HW,V4L] bttv (bt848 + bt878 based grabber cards) bttv.radio= Most important insmod options are available as kernel args too. @@ -458,12 +468,6 @@ and is between 256 and 4096 characters. It is defined in the file Range: 0 - 8192 Default: 64 - disable_8254_timer - enable_8254_timer - [IA32/X86_64] Disable/Enable interrupt 0 timer routing - over the 8254 in addition to over the IO-APIC. The - kernel tries to set a sensible default. - hpet= [X86-32,HPET] option to control HPET usage Format: { enable (default) | disable | force } disable: disable HPET and use PIT instead @@ -774,8 +778,22 @@ and is between 256 and 4096 characters. It is defined in the file hisax= [HW,ISDN] See Documentation/isdn/README.HiSax. - hugepages= [HW,X86-32,IA-64] Maximal number of HugeTLB pages. - hugepagesz= [HW,IA-64,PPC] The size of the HugeTLB pages. + hugepages= [HW,X86-32,IA-64] HugeTLB pages to allocate at boot. + hugepagesz= [HW,IA-64,PPC,X86-64] The size of the HugeTLB pages. + On x86-64 and powerpc, this option can be specified + multiple times interleaved with hugepages= to reserve + huge pages of different sizes. Valid pages sizes on + x86-64 are 2M (when the CPU supports "pse") and 1G + (when the CPU supports the "pdpe1gb" cpuinfo flag) + Note that 1GB pages can only be allocated at boot time + using hugepages= and not freed afterwards. + default_hugepagesz= + [same as hugepagesz=] The size of the default + HugeTLB page size. This is the size represented by + the legacy /proc/ hugepages APIs, used for SHM, and + default size when mounting hugetlbfs filesystems. + Defaults to the default architecture's huge page size + if not specified. i8042.direct [HW] Put keyboard port into non-translated mode i8042.dumbkbd [HW] Pretend that controller can only read data from @@ -1055,6 +1073,9 @@ and is between 256 and 4096 characters. It is defined in the file * [no]ncq: Turn on or off NCQ. + * nohrst, nosrst, norst: suppress hard, soft + and both resets. + If there are multiple matching configurations changing the same attribute, the last one is used. @@ -1206,7 +1227,7 @@ and is between 256 and 4096 characters. It is defined in the file or memmap=0x10000$0x18690000 - memtest= [KNL,X86_64] Enable memtest + memtest= [KNL,X86] Enable memtest Format: range: 0,4 : pattern number default : 0 @@ -1225,6 +1246,14 @@ and is between 256 and 4096 characters. It is defined in the file mga= [HW,DRM] + mminit_loglevel= + [KNL] When CONFIG_DEBUG_MEMORY_INIT is set, this + parameter allows control of the logging verbosity for + the additional memory initialisation checks. A value + of 0 disables mminit logging and a level of 4 will + log everything. Information is printed at KERN_DEBUG + so loglevel=8 may also need to be specified. + mousedev.tap_time= [MOUSE] Maximum time between finger touching and leaving touchpad surface for touch to be considered @@ -1279,6 +1308,13 @@ and is between 256 and 4096 characters. It is defined in the file This usage is only documented in each driver source file if at all. + nf_conntrack.acct= + [NETFILTER] Enable connection tracking flow accounting + 0 to disable accounting + 1 to enable accounting + Default value depends on CONFIG_NF_CT_ACCT that is + going to be removed in 2.6.29. + nfsaddrs= [NFS] See Documentation/filesystems/nfsroot.txt. @@ -1388,6 +1424,12 @@ and is between 256 and 4096 characters. It is defined in the file nolapic_timer [X86-32,APIC] Do not use the local APIC timer. + nox2apic [X86-64,APIC] Do not enable x2APIC mode. + + x2apic_phys [X86-64,APIC] Use x2apic physical mode instead of + default x2apic cluster mode on platforms + supporting x2apic. + noltlbs [PPC] Do not use large page/tlb entries for kernel lowmem mapping on PPC40x. @@ -1845,6 +1887,12 @@ and is between 256 and 4096 characters. It is defined in the file shapers= [NET] Maximal number of shapers. + show_msr= [x86] show boot-time MSR settings + Format: { } + Show boot-time (BIOS-initialized) MSR settings. + The parameter means the number of CPUs to show, + for example 1 means boot CPU only. + sim710= [SCSI,HW] See header of drivers/scsi/sim710.c. @@ -2027,6 +2075,9 @@ and is between 256 and 4096 characters. It is defined in the file snd-ymfpci= [HW,ALSA] + softlockup_panic= + [KNL] Should the soft-lockup detector generate panics. + sonypi.*= [HW] Sony Programmable I/O Control Device driver See Documentation/sonypi.txt @@ -2091,6 +2142,12 @@ and is between 256 and 4096 characters. It is defined in the file tdfx= [HW,DRM] + test_suspend= [SUSPEND] + Specify "mem" (for Suspend-to-RAM) or "standby" (for + standby suspend) as the system sleep state to briefly + enter during system startup. The system is woken from + this state using a wakeup-capable RTC alarm. + thash_entries= [KNL,NET] Set number of hash buckets for TCP connection @@ -2118,13 +2175,6 @@ and is between 256 and 4096 characters. It is defined in the file : poll all this frequency 0: no polling (default) - tipar.timeout= [HW,PPT] - Set communications timeout in tenths of a second - (default 15). - - tipar.delay= [HW,PPT] - Set inter-bit delay in microseconds (default 10). - tmscsim= [HW,SCSI] See comment before function dc390_setup() in drivers/scsi/tmscsim.c. @@ -2158,6 +2208,10 @@ and is between 256 and 4096 characters. It is defined in the file Note that genuine overcurrent events won't be reported either. + unknown_nmi_panic + [X86-32,X86-64] + Set unknown_nmi_panic=1 early on boot. + usbcore.autosuspend= [USB] The autosuspend time delay (in seconds) used for newly-detected USB devices (default 2). This