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| author | Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | 2016-07-13 11:35:31 +0200 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2016-07-17 08:42:55 +0200 |
| commit | b275bfb2696387be216db5b7372ee9dcf3f05b80 (patch) | |
| tree | 86e47bb902cc99d0da9273625188cce36989e728 /Documentation/kernel-parameters.txt | |
| parent | powerpc/mm/radix: Add LPID based tlb flush helpers (diff) | |
| download | linux-b275bfb2696387be216db5b7372ee9dcf3f05b80.tar.xz linux-b275bfb2696387be216db5b7372ee9dcf3f05b80.zip | |
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.txt | 3 |
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 |