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Documentation: vm: Add 1GB large page support information

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This patch adds 1GB large page support information in
Documentation/vm/hugetlbpage.txt

Reference:
https://lkml.org/lkml/2014/10/31/366

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This commit is contained in:
Masanari Iida 2014-11-07 00:31:15 +09:00 committed by Jonathan Corbet
parent 747029a566
commit c0d7305cb3
1 changed files with 2 additions and 2 deletions
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4
Documentation/vm/hugetlbpage.txt
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@ -1,8 +1,8 @@
The intent of this file is to give a brief summary of hugetlbpage support in
the Linux kernel. This support is built on top of multiple page size support
that is provided by most modern architectures. For example, i386
architecture supports 4K and 4M (2M in PAE mode) page sizes, ia64
that is provided by most modern architectures. For example, x86 CPUs normally
support 4K and 2M (1G if architecturally supported) page sizes, ia64
architecture supports multiple page sizes 4K, 8K, 64K, 256K, 1M, 4M, 16M,
256M and ppc64 supports 4K and 16M. A TLB is a cache of virtual-to-physical
translations. Typically this is a very scarce resource on processor.