Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next

[can-eth-gw-linux.git] / Documentation / kernel-parameters.txt

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 03d1251a915ed08091b3e619a98db45abfbd04fb..20e248cc03a9a64f08f55af30d10f8fe328c6861 100644 (file)
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -905,6 +905,24 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
        gpt             [EFI] Forces disk with valid GPT signature but
                        invalid Protective MBR to be treated as GPT.
 
+       grcan.enable0=  [HW] Configuration of physical interface 0. Determines
+                       the "Enable 0" bit of the configuration register.
+                       Format: 0 | 1
+                       Default: 0
+       grcan.enable1=  [HW] Configuration of physical interface 1. Determines
+                       the "Enable 0" bit of the configuration register.
+                       Format: 0 | 1
+                       Default: 0
+       grcan.select=   [HW] Select which physical interface to use.
+                       Format: 0 | 1
+                       Default: 0
+       grcan.txsize=   [HW] Sets the size of the tx buffer.
+                       Format: <unsigned int> such that (txsize & ~0x1fffc0) == 0.
+                       Default: 1024
+       grcan.rxsize=   [HW] Sets the size of the rx buffer.
+                       Format: <unsigned int> such that (rxsize & ~0x1fffc0) == 0.
+                       Default: 1024
+
        hashdist=       [KNL,NUMA] Large hashes allocated during boot
                        are distributed across NUMA nodes.  Defaults on
                        for 64-bit NUMA, off otherwise.
@@ -1304,6 +1322,10 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
        lapic           [X86-32,APIC] Enable the local APIC even if BIOS
                        disabled it.
 
+       lapic=          [x86,APIC] "notscdeadline" Do not use TSC deadline
+                       value for LAPIC timer one-shot implementation. Default
+                       back to the programmable timer unit in the LAPIC.
+
        lapic_timer_c2_ok       [X86,APIC] trust the local apic timer
                        in C2 power state.
 
@@ -1984,6 +2006,20 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
 
        nox2apic        [X86-64,APIC] Do not enable x2APIC mode.
 
+       cpu0_hotplug    [X86] Turn on CPU0 hotplug feature when
+                       CONFIG_BOOTPARAM_HOTPLUG_CPU0 is off.
+                       Some features depend on CPU0. Known dependencies are:
+                       1. Resume from suspend/hibernate depends on CPU0.
+                       Suspend/hibernate will fail if CPU0 is offline and you
+                       need to online CPU0 before suspend/hibernate.
+                       2. PIC interrupts also depend on CPU0. CPU0 can't be
+                       removed if a PIC interrupt is detected.
+                       It's said poweroff/reboot may depend on CPU0 on some
+                       machines although I haven't seen such issues so far
+                       after CPU0 is offline on a few tested machines.
+                       If the dependencies are under your control, you can
+                       turn on cpu0_hotplug.
+
        nptcg=          [IA-64] Override max number of concurrent global TLB
                        purges which is reported from either PAL_VM_SUMMARY or
                        SAL PALO.