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authorAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>2016-07-13 15:05:31 +0530
committerMichael Ellerman <mpe@ellerman.id.au>2016-07-17 16:42:55 +1000
commitb275bfb2696387be216db5b7372ee9dcf3f05b80 (patch)
tree86e47bb902cc99d0da9273625188cce36989e728 /Documentation/kernel-parameters.txt
parent912cc87a654d3d30f5da6220489a97a5beb7d313 (diff)
downloadlinux-aarch64-b275bfb2696387be216db5b7372ee9dcf3f05b80.tar.gz
powerpc/mm/radix: Add a kernel command line to disable radix
This patch adds the kernel command line disable_radix which disable the radix MMU mode even if firmware indicates radix support via ibm,pa-features device tree node. This helps in testing different MMU mode easily. Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'Documentation/kernel-parameters.txt')
-rw-r--r--Documentation/kernel-parameters.txt3
1 files changed, 3 insertions, 0 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 738bae4a5958..bba7ef30d74e 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -929,6 +929,9 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
disable= [IPV6]
See Documentation/networking/ipv6.txt.
+ disable_radix [PPC]
+ Disable RADIX MMU mode on POWER9
+
disable_cpu_apicid= [X86,APIC,SMP]
Format: <int>
The number of initial APIC ID for the