Merge tag 'arm64-perf' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

[cascardo/linux.git] / Documentation / kernel-parameters.txt

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 8e5abd6..ecc74fa 100644 (file)
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -193,6 +193,12 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
                        (e.g. thinkpad_acpi, sony_acpi, etc.) instead
                        of the ACPI video.ko driver.
 
+       acpi_force_32bit_fadt_addr
+                       force FADT to use 32 bit addresses rather than the
+                       64 bit X_* addresses. Some firmware have broken 64
+                       bit addresses for force ACPI ignore these and use
+                       the older legacy 32 bit addresses.
+
        acpica_no_return_repair [HW, ACPI]
                        Disable AML predefined validation mechanism
                        This mechanism can repair the evaluation result to make
@@ -608,6 +614,11 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
                        cut the overhead, others just disable the usage. So
                        only cgroup_disable=memory is actually worthy}
 
+       cgroup_no_v1=   [KNL] Disable one, multiple, all cgroup controllers in v1
+                       Format: { controller[,controller...] | "all" }
+                       Like cgroup_disable, but only applies to cgroup v1;
+                       the blacklisted controllers remain available in cgroup2.
+
        cgroup.memory=  [KNL] Pass options to the cgroup memory controller.
                        Format: <string>
                        nosocket -- Disable socket memory accounting.
@@ -666,7 +677,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
 
        clearcpuid=BITNUM [X86]
                        Disable CPUID feature X for the kernel. See
-                       arch/x86/include/asm/cpufeature.h for the valid bit
+                       arch/x86/include/asm/cpufeatures.h for the valid bit
                        numbers. Note the Linux specific bits are not necessarily
                        stable over kernel options, but the vendor specific
                        ones should be.
@@ -976,6 +987,9 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
                        See Documentation/x86/intel_mpx.txt for more
                        information about the feature.
 
+       nopku           [X86] Disable Memory Protection Keys CPU feature found
+                       in some Intel CPUs.
+
        eagerfpu=       [X86]
                        on      enable eager fpu restore
                        off     disable eager fpu restore
@@ -1058,6 +1072,12 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
                        A valid base address must be provided, and the serial
                        port must already be setup and configured.
 
+               armada3700_uart,<addr>
+                       Start an early, polled-mode console on the
+                       Armada 3700 serial port at the specified
+                       address. The serial port must already be setup
+                       and configured. Options are not yet supported.
+
        earlyprintk=    [X86,SH,BLACKFIN,ARM,M68k]
                        earlyprintk=vga
                        earlyprintk=efi
@@ -1687,6 +1707,15 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
        ip=             [IP_PNP]
                        See Documentation/filesystems/nfs/nfsroot.txt.
 
+       irqaffinity=    [SMP] Set the default irq affinity mask
+                       Format:
+                       <cpu number>,...,<cpu number>
+                       or
+                       <cpu number>-<cpu number>
+                       (must be a positive range in ascending order)
+                       or a mixture
+                       <cpu number>,...,<cpu number>-<cpu number>
+
        irqfixup        [HW]
                        When an interrupt is not handled search all handlers
                        for it. Intended to get systems with badly broken
@@ -2576,6 +2605,8 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
 
        nointroute      [IA-64]
 
+       noinvpcid       [X86] Disable the INVPCID cpu feature.
+
        nojitter        [IA-64] Disables jitter checking for ITC timers.
 
        no-kvmclock     [X86,KVM] Disable paravirtualized KVM clock driver
@@ -2592,7 +2623,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
        nolapic_timer   [X86-32,APIC] Do not use the local APIC timer.
 
        noltlbs         [PPC] Do not use large page/tlb entries for kernel
-                       lowmem mapping on PPC40x.
+                       lowmem mapping on PPC40x and PPC8xx
 
        nomca           [IA-64] Disable machine check abort handling
 
@@ -3510,6 +3541,12 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
                on      Mark read-only kernel memory as read-only (default).
                off     Leave read-only kernel memory writable for debugging.
 
+       rockchip.usb_uart
+                       Enable the uart passthrough on the designated usb port
+                       on Rockchip SoCs. When active, the signals of the
+                       debug-uart get routed to the D+ and D- pins of the usb
+                       port and the regular usb controller gets disabled.
+
        root=           [KNL] Root filesystem
                        See name_to_dev_t comment in init/do_mounts.c.