X-Git-Url: https://git.karo-electronics.de/?a=blobdiff_plain;f=Documentation%2Fkernel-parameters.txt;h=f6befa9855c128b193620cd83a0d654a9e5428df;hb=7290006d8c0900c56d8c58428134f02c35109d17;hp=491bbd104b063143924647e566be5e7bfc8ac743;hpb=e0155a99b28f63e007c0c74076ad8ae486a3c9d3;p=karo-tx-linux.git diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 491bbd104b06..f6befa9855c1 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -165,7 +165,7 @@ multipliers 'Kilo', 'Mega', and 'Giga', equalling 2^10, 2^20, and 2^30 bytes respectively. Such letter suffixes can also be entirely omitted. - acpi= [HW,ACPI,X86] + acpi= [HW,ACPI,X86,ARM64] Advanced Configuration and Power Interface Format: { force | off | strict | noirq | rsdt } force -- enable ACPI if default was off @@ -175,6 +175,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted. strictly ACPI specification compliant. rsdt -- prefer RSDT over (default) XSDT copy_dsdt -- copy DSDT to memory + For ARM64, ONLY "acpi=off" or "acpi=force" are available See also Documentation/power/runtime_pm.txt, pci=noacpi @@ -713,10 +714,18 @@ bytes respectively. Such letter suffixes can also be entirely omitted. uart[8250],io,[,options] uart[8250],mmio,[,options] + uart[8250],mmio32,[,options] + uart[8250],0x[,options] Start an early, polled-mode console on the 8250/16550 UART at the specified I/O port or MMIO address, - switching to the matching ttyS device later. The - options are the same as for ttyS, above. + switching to the matching ttyS device later. + MMIO inter-register address stride is either 8-bit + (mmio) or 32-bit (mmio32). + If none of [io|mmio|mmio32], is assumed to be + equivalent to 'mmio'. 'options' are specified in the + same format described for ttyS above; if unspecified, + the h/w is not re-initialized. + hvc Use the hypervisor console device . This is for both Xen and PowerPC hypervisors. @@ -928,6 +937,12 @@ bytes respectively. Such letter suffixes can also be entirely omitted. Enable debug messages at boot time. See Documentation/dynamic-debug-howto.txt for details. + eagerfpu= [X86] + on enable eager fpu restore + off disable eager fpu restore + auto selects the default scheme, which automatically + enables eagerfpu restore for xsaveopt. + early_ioremap_debug [KNL] Enable debug messages in early_ioremap support. This is useful for tracking down temporary early mappings @@ -944,11 +959,15 @@ bytes respectively. Such letter suffixes can also be entirely omitted. uart[8250],io,[,options] uart[8250],mmio,[,options] uart[8250],mmio32,[,options] + uart[8250],0x[,options] Start an early, polled-mode console on the 8250/16550 UART at the specified I/O port or MMIO address. MMIO inter-register address stride is either 8-bit (mmio) or 32-bit (mmio32). - The options are the same as for ttyS, above. + If none of [io|mmio|mmio32], is assumed to be + equivalent to 'mmio'. 'options' are specified in the + same format described for "console=ttyS"; if + unspecified, the h/w is not initialized. pl011, Start an early, polled-mode console on a pl011 serial @@ -1966,6 +1985,12 @@ bytes respectively. Such letter suffixes can also be entirely omitted. or memmap=0x10000$0x18690000 + memmap=nn[KMG]!ss[KMG] + [KNL,X86] Mark specific memory as protected. + Region of memory to be used, from ss to ss+nn. + The memory region may be marked as e820 type 12 (0xc) + and is NVDIMM or ADR memory. + memory_corruption_check=0/1 [X86] Some BIOSes seem to corrupt the first 64k of memory when doing things like suspend/resume. @@ -2317,7 +2342,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted. noexec32=off: disable non-executable mappings read implies executable mappings - nofpu [SH] Disable hardware FPU at boot time. + nofpu [MIPS,SH] Disable hardware FPU at boot time. nofxsr [BUGS=X86-32] Disables x86 floating point extended register save and restore. The kernel will only save @@ -2344,12 +2369,6 @@ bytes respectively. Such letter suffixes can also be entirely omitted. parameter, xsave area per process might occupy more memory on xsaves enabled systems. - eagerfpu= [X86] - on enable eager fpu restore - off disable eager fpu restore - auto selects the default scheme, which automatically - enables eagerfpu restore for xsaveopt. - nohlt [BUGS=ARM,SH] Tells the kernel that the sleep(SH) or wfi(ARM) instruction doesn't work correctly and not to use it. This is also useful when using JTAG debugger.