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authorDavid Daney <ddaney@caviumnetworks.com>2009-05-27 17:47:46 -0700
committerRalf Baechle <ralf@linux-mips.org>2009-06-17 11:06:31 +0100
commit9cffd154cf6817b130762501b91e753524ba2cd4 (patch)
tree909da4068e99b7e32282c07bf005e5a36d17d6fc /arch
parent852969b2d273e77dabbc22e1c1058cbafb7ad7d2 (diff)
MIPS: Kconfig Add SYS_SUPPORTS_HUGETLBFS and enable it for some systems.
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>
Diffstat (limited to 'arch')
-rw-r--r--arch/mips/Kconfig11
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 96f05e588f4..cebebf151a1 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -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.