Hi-- A few of these new entries are out of place, i.e., not in sorted order. See below. On 5/21/23 15:31, Jiaxun Yang wrote: > Those parameters lives in MIPS kernel since very start. > Document them for convenience. > > Signed-off-by: Jiaxun Yang <jiaxun.yang@xxxxxxxxxxx> > --- > .../admin-guide/kernel-parameters.txt | 29 +++++++++++++++++++ > 1 file changed, 29 insertions(+) > > diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt > index 9c502d3aa0cd..67a0c3f7eca3 100644 > --- a/Documentation/admin-guide/kernel-parameters.txt > +++ b/Documentation/admin-guide/kernel-parameters.txt > @@ -713,6 +713,8 @@ > Sets the size of memory pool for coherent, atomic dma > allocations, by default set to 256K. > > + coherentio [KNL,MIPS] Force enable hardware DMA cache coherency. > + This one should be just above "coherent_pool". > com20020= [HW,NET] ARCnet - COM20020 chipset > Format: > <io>[,<irq>[,<nodeID>[,<backplane>[,<ckp>[,<timeout>]]]]] > @@ -3626,6 +3628,8 @@ > > nocache [ARM] > > + nocoherentio [KNL,MIPS] Force enable software DMA cache coherency. > + OK. > no_console_suspend > [HW] Never suspend the console > Disable suspending of consoles during suspend and > @@ -3645,6 +3649,7 @@ > [KNL] Disable object debugging > > nodsp [SH] Disable hardware DSP at boot time. > + [MIPS] Disable DSP ASE at boot time. > > noefi Disable EFI runtime services support. > > @@ -3667,6 +3672,8 @@ > > nofsgsbase [X86] Disables FSGSBASE instructions. > > + noftlb [MIPS] Disable Fixed TLB at boot time. OK. > + > nofxsr [BUGS=X86-32] Disables x86 floating point extended > register save and restore. The kernel will only save > legacy floating-point registers on task switch. > @@ -3678,6 +3685,8 @@ > in certain environments such as networked servers or > real-time systems. > > + nohtw [MIPS] Disable hardware page table walker at boot time. > + nohtw should be immediately after "nohlt". > no_hash_pointers > Force pointers printed to the console or buffers to be > unhashed. By default, when a pointer is printed via %p > @@ -3758,6 +3767,8 @@ > > nolapic_timer [X86-32,APIC] Do not use the local APIC timer. > > + noulri [MIPS] Disable RDHWR ULR access for user space. > + This should be just after "no_uaccess_flush". > nomca [IA-64] Disable machine check abort handling > > nomce [X86-32] Disable Machine Check Exception > @@ -3882,6 +3893,8 @@ > [X86,PV_OPS] Disable paravirtualized VMware scheduler > clock and use the default one. > > + nowait [MIPS] Disable the wait instruction for idle. > + OK. > nowatchdog [KNL] Disable both lockup detectors, i.e. > soft-lockup and NMI watchdog (hard-lockup). > > @@ -3893,6 +3906,8 @@ > LEGACY_XAPIC_DISABLED bit set in the > IA32_XAPIC_DISABLE_STATUS MSR. > > + noxpa [MIPS] Disable XPA (eXtended Physical Addressing) ASE. > + OK. > noxsave [BUGS=X86] Disables x86 extended register state save > and restore using xsave. The kernel will fallback to > enabling legacy floating-point and sse state. > @@ -3936,6 +3951,8 @@ > > nr_uarts= [SERIAL] maximum number of UARTs to be registered. > > + ntlb= [MIPS] Override max number of TLB entries. > + OK. > numa=off [KNL, ARM64, PPC, RISCV, SPARC, X86] Disable NUMA, Only > set up a single NUMA node spanning all memory. > > @@ -5273,6 +5290,18 @@ > rcupdate.rcu_self_test= [KNL] > Run the RCU early boot self tests > > + rd_size= [KNL,MIPS] > + Specify size of initrd in memory. > + Need to be used with rd_start. > + > + rd_start= [KNL,MIPS] > + Specify a virtual address from which to load the initrd. > + Must in KSEG0 or XKPHYS space. > + Need to be used with rd_size. > + rd_size and rd_start should be just after "rdrand". > + rdhwr_noopt [MIPS] Disable optimization of trap and emulation for > + "RDHWR v1, $29" instruction. > + OK. > rdinit= [KNL] > Format: <full_path> > Run specified binary instead of /init from the ramdisk, thanks. -- ~Randy
