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authorRobin Holt <holt@sgi.com>2005-11-11 16:35:43 +0100
committerTony Luck <tony.luck@intel.com>2005-11-11 18:37:29 +0100
commit837cd0bdf54dd954cd6aa43d250f75ab5db79617 (patch)
treeef28b91f1ac8c1c9f4244da9be1f994306ef4070 /arch/ia64/configs
parent[PATCH] Input: convert hdaps to dynamic input_dev allocation. (diff)
downloadlinux-837cd0bdf54dd954cd6aa43d250f75ab5db79617.tar.xz
linux-837cd0bdf54dd954cd6aa43d250f75ab5db79617.zip
[IA64] 4-level page tables
This patch introduces 4-level page tables to ia64. I have run some benchmarks and found nothing interesting. Performance has consistently fallen within the noise range. It also introduces a config option (setting the default to 3 levels). The config option prevents having 4 level page tables with 64k base page size. Signed-off-by: Robin Holt <holt@sgi.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'arch/ia64/configs')
-rw-r--r--arch/ia64/configs/sn2_defconfig2
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/ia64/configs/sn2_defconfig b/arch/ia64/configs/sn2_defconfig
index 08112ab38468..87cfd31a4a39 100644
--- a/arch/ia64/configs/sn2_defconfig
+++ b/arch/ia64/configs/sn2_defconfig
@@ -80,6 +80,8 @@ CONFIG_MCKINLEY=y
# CONFIG_IA64_PAGE_SIZE_8KB is not set
CONFIG_IA64_PAGE_SIZE_16KB=y
# CONFIG_IA64_PAGE_SIZE_64KB is not set
+# CONFIG_PGTABLE_3 is not set
+CONFIG_PGTABLE_4=y
# CONFIG_HZ_100 is not set
CONFIG_HZ_250=y
# CONFIG_HZ_1000 is not set