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>
---
arch/mips/Kconfig | 11 +++++++++++
1 files changed, 11 insertions(+), 0 deletions(-)
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index c4a84a6..592949a 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -852,6 +852,11 @@ 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
@@ -1056,6 +1061,7 @@ 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
@@ -1075,6 +1081,7 @@ 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
@@ -1161,6 +1168,7 @@ 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.
@@ -1246,6 +1254,7 @@ 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
@@ -1365,6 +1374,8 @@ 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.
--
1.6.0.6
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