From b952741c80790d2dc9f17fac6f15d87d58dea2a1 Mon Sep 17 00:00:00 2001 From: Frederic Weisbecker Date: Sat, 16 Jun 2012 15:39:34 +0200 Subject: cputime: Generalize CONFIG_VIRT_CPU_ACCOUNTING S390, ia64 and powerpc all define their own version of CONFIG_VIRT_CPU_ACCOUNTING. Generalize the config and its description to a single place to avoid duplication. Signed-off-by: Frederic Weisbecker Cc: Tony Luck Cc: Fenghua Yu Cc: Benjamin Herrenschmidt Cc: Paul Mackerras Cc: Martin Schwidefsky Cc: Heiko Carstens Cc: Ingo Molnar Cc: Thomas Gleixner Cc: Peter Zijlstra --- arch/powerpc/platforms/Kconfig.cputype | 16 +--------------- 1 file changed, 1 insertion(+), 15 deletions(-) (limited to 'arch/powerpc') diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype index 30fd01de6be..72afd2888ca 100644 --- a/arch/powerpc/platforms/Kconfig.cputype +++ b/arch/powerpc/platforms/Kconfig.cputype @@ -1,6 +1,7 @@ config PPC64 bool "64-bit kernel" default n + select HAVE_VIRT_CPU_ACCOUNTING help This option selects whether a 32-bit or a 64-bit kernel will be built. @@ -337,21 +338,6 @@ config PPC_MM_SLICES default y if (!PPC_FSL_BOOK3E && PPC64 && HUGETLB_PAGE) || (PPC_STD_MMU_64 && PPC_64K_PAGES) default n -config VIRT_CPU_ACCOUNTING - bool "Deterministic task and CPU time accounting" - depends on PPC64 - default y - help - Select this option to enable more accurate task and CPU time - accounting. This is done by reading a CPU counter on each - kernel entry and exit and on transitions within the kernel - between system, softirq and hardirq state, so there is a - small performance impact. This also enables accounting of - stolen time on logically-partitioned systems running on - IBM POWER5-based machines. - - If in doubt, say Y here. - config PPC_HAVE_PMU_SUPPORT bool -- cgit v1.2.3-70-g09d2