From 837cd0bdf54dd954cd6aa43d250f75ab5db79617 Mon Sep 17 00:00:00 2001 From: Robin Holt Date: Fri, 11 Nov 2005 09:35:43 -0600 Subject: [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 Signed-off-by: Tony Luck --- arch/ia64/defconfig | 2 ++ 1 file changed, 2 insertions(+) (limited to 'arch/ia64/defconfig') diff --git a/arch/ia64/defconfig b/arch/ia64/defconfig index 6e3f147e03e5..275a26c6e5aa 100644 --- a/arch/ia64/defconfig +++ b/arch/ia64/defconfig @@ -82,6 +82,8 @@ 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=y +# CONFIG_PGTABLE_4 is not set # CONFIG_HZ_100 is not set CONFIG_HZ_250=y # CONFIG_HZ_1000 is not set -- cgit v1.2.3