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MIPS: Kconfig Add SYS_SUPPORTS_HUGETLBFS and enable it for some systems.

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Add new kconfig variables SYS_SUPPORTS_HUGETLBFS and
CPU_SUPPORTS_HUGEPAGES.  They are enabled for systems that are known
to support huge pages.

Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
David Daney 2009-05-27 17:47:46 -07:00 committed by Ralf Baechle
parent 852969b2d2
commit 9cffd154cf
1 changed files with 11 additions and 0 deletions
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11
arch/mips/Kconfig
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@ -853,6 +853,11 @@ config SYS_SUPPORTS_BIG_ENDIAN
config SYS_SUPPORTS_LITTLE_ENDIAN
bool
config SYS_SUPPORTS_HUGETLBFS
bool
depends on CPU_SUPPORTS_HUGEPAGES && 64BIT
default y
config IRQ_CPU
bool
@ -1057,6 +1062,7 @@ config CPU_MIPS64_R1
select CPU_SUPPORTS_32BIT_KERNEL
select CPU_SUPPORTS_64BIT_KERNEL
select CPU_SUPPORTS_HIGHMEM
select CPU_SUPPORTS_HUGEPAGES
help
Choose this option to build a kernel for release 1 or later of the
MIPS64 architecture. Many modern embedded systems with a 64-bit
@ -1076,6 +1082,7 @@ config CPU_MIPS64_R2
select CPU_SUPPORTS_32BIT_KERNEL
select CPU_SUPPORTS_64BIT_KERNEL
select CPU_SUPPORTS_HIGHMEM
select CPU_SUPPORTS_HUGEPAGES
help
Choose this option to build a kernel for release 2 or later of the
MIPS64 architecture. Many modern embedded systems with a 64-bit
@ -1162,6 +1169,7 @@ config CPU_R5500
select CPU_HAS_LLSC
select CPU_SUPPORTS_32BIT_KERNEL
select CPU_SUPPORTS_64BIT_KERNEL
select CPU_SUPPORTS_HUGEPAGES
help
NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
instruction set.
@ -1247,6 +1255,7 @@ config CPU_CAVIUM_OCTEON
select WEAK_ORDERING
select WEAK_REORDERING_BEYOND_LLSC
select CPU_SUPPORTS_HIGHMEM
select CPU_SUPPORTS_HUGEPAGES
help
The Cavium Octeon processor is a highly integrated chip containing
many ethernet hardware widgets for networking tasks. The processor
@ -1366,6 +1375,8 @@ config CPU_SUPPORTS_32BIT_KERNEL
bool
config CPU_SUPPORTS_64BIT_KERNEL
bool
config CPU_SUPPORTS_HUGEPAGES
bool
#
# Set to y for ptrace access to watch registers.