Merge tag 'tegra-for-4.8-i2c' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra...

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

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 7b550d4..705fb91 100644 (file)
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -460,6 +460,15 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
                        driver will print ACPI tables for AMD IOMMU during
                        IOMMU initialization.
 
+       amd_iommu_intr= [HW,X86-64]
+                       Specifies one of the following AMD IOMMU interrupt
+                       remapping modes:
+                       legacy     - Use legacy interrupt remapping mode.
+                       vapic      - Use virtual APIC mode, which allows IOMMU
+                                    to inject interrupts directly into guest.
+                                    This mode requires kvm-amd.avic=1.
+                                    (Default when IOMMU HW support is present.)
+
        amijoy.map=     [HW,JOY] Amiga joystick support
                        Map of devices attached to JOY0DAT and JOY1DAT
                        Format: <a>,<b>
@@ -698,6 +707,15 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
                        loops can be debugged more effectively on production
                        systems.
 
+       clocksource.arm_arch_timer.fsl-a008585=
+                       [ARM64]
+                       Format: <bool>
+                       Enable/disable the workaround of Freescale/NXP
+                       erratum A-008585.  This can be useful for KVM
+                       guests, if the guest device tree doesn't show the
+                       erratum.  If unspecified, the workaround is
+                       enabled based on the device tree.
+
        clearcpuid=BITNUM [X86]
                        Disable CPUID feature X for the kernel. See
                        arch/x86/include/asm/cpufeatures.h for the valid bit
@@ -1045,11 +1063,12 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
                        determined by the stdout-path property in device
                        tree's chosen node.
 
-               cdns,<addr>
-                       Start an early, polled-mode console on a cadence serial
-                       port at the specified address. The cadence serial port
-                       must already be setup and configured. Options are not
-                       yet supported.
+               cdns,<addr>[,options]
+                       Start an early, polled-mode console on a Cadence
+                       (xuartps) serial port at the specified address. Only
+                       supported option is baud rate. If baud rate is not
+                       specified, the serial port must already be setup and
+                       configured.
 
                uart[8250],io,<addr>[,options]
                uart[8250],mmio,<addr>[,options]
@@ -1364,6 +1383,10 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
                        Format: <unsigned int> such that (rxsize & ~0x1fffc0) == 0.
                        Default: 1024
 
+       gpio-mockup.gpio_mockup_ranges
+                       [HW] Sets the ranges of gpiochip of for this device.
+                       Format: <start1>,<end1>,<start2>,<end2>...
+
        hardlockup_all_cpu_backtrace=
                        [KNL] Should the hard-lockup detector generate
                        backtraces on all cpus.
@@ -1643,6 +1666,11 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
 
        initrd=         [BOOT] Specify the location of the initial ramdisk
 
+       init_pkru=      [x86] Specify the default memory protection keys rights
+                       register contents for all processes.  0x55555554 by
+                       default (disallow access to all but pkey 0).  Can
+                       override in debugfs after boot.
+
        inport.irq=     [HW] Inport (ATI XL and Microsoft) busmouse driver
                        Format: <irq>
 
@@ -4242,6 +4270,8 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
                                u = IGNORE_UAS (don't bind to the uas driver);
                                w = NO_WP_DETECT (don't test whether the
                                        medium is write-protected).
+                               y = ALWAYS_SYNC (issue a SYNCHRONIZE_CACHE
+                                       even if the device claims no cache)
                        Example: quirks=0419:aaf5:rl,0421:0433:rc
 
        user_debug=     [KNL,ARM]